Chapter II: Part 2

This is a very curious but not uncommon combination of the watch with the dial,--the latter being marked inside the watch-case and having a gnomon moving on a hinge so as to allow of its lying flat and being enclosed within the case when not in use.

Our next illustration is of one of the earliest examples of a round watch made in England, the date being 1593. It contains not only a dial showing the hour, but a sort of general calendar in miniature.

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Of much about the same date is the following example in silver and brass. It is of the same style of time-keeper, and shows how our forefathers liked to know not only the time of day but the period of the month; and how they watched the moon's changes, and in a word made an almanac of their watches.

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It was not an unusual thing for religious persons who used rosaries at their devotions, to add to their beads a miniature skull, with a view it may be to remind themselves of the frailty of life by way of stimulus to the preparation for the future state. When watches were invented the Memento Mori death's head was made into a watch-case, as in the illustration on page 44.

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The Lauder family, of Grange and Fountain Hall, possess the _Memento Mori_ Watch there engraved, they having inherited it from their ancestors, the Setoun family. It was given by Queen Mary to Mary Setoun, of the house of Wintoun, one of the four Marys, maids of honour to the Scottish Queen. This very curious relic must have been intended to be placed on a _prie-dieu_, or small altar, in a private oratory; for it is too heavy to have been carried in any way attached to the person. The watch is of the form of a skull: on the forehead is the figure of Death, standing between a palace and a cottage; around is this legend from Horace: '_Pallida mors æquo pulsat pede pauperum tabernas Regumque turres_.' On the hind part of the skull is a figure of Time, with another legend from Horace: '_Tempus edax rerum tuque invidiosa vetustas_.' The upper part of the skull bears representations of Adam and Eve in the garden of Eden, and of the Crucifixion, each with Latin legends; and between these scenes is open-work, to let out the sound when the watch strikes the hours upon a small silver bell, which fills the hollow of the skull, and receives the works within it when the watch is shut.

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Nor about this time was the opportunity omitted of inculcating by means of pictorial watch illustrations, that Scriptural knowledge which was in the less educated times not so much taught by books as by pictures. The watch case given on the following page is of about 1600. It is obviously of English workmanship, and is a fair specimen of the period,--it may be, indeed, that, looking at it, one may well doubt whether art has much advanced in watch-ornamentation during the last 270 years or so.

We give our next illustration as another example of an ancient Table Watch. This watch has a revolving dial at the top, by means of which and the fixed point or hand the time is indicated (page 46).

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Such was the state of clockwork when Galileo, the great astronomer, then a medical student at Pisa, happened to discover, while gazing up at the roof of the cathedral when he should, perhaps, have been devotionally occupied, that the lamps suspended therefrom by chains of equal lengths, swung, and made their vibrations in long or short arcs, in almost the same space of time,--a fact, the truth of which he ascertained by the beats of his pulse.

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This isochronal property, as it was called, was described in a treatise which he published at Paris in 1639, entitled 'L'Usage du Cadron ou de l'Horloge physique universelle.' The first application which Galileo made of his discovery was the professional one of testing the rate and variations of the pulse, and it is even denied that he did more than suggest its applicability to clockwork.

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The honours of the invention of the pendulum-clock have been contested by Vincentio Galilei, son of the great astronomer, who is said to have made a pendulum-clock at Venice in 1649, and Christian Huygens, a noted Dutch mathematician, who (in his excellent treatise, 'De Horologio Oscillatorio,' which was the foundation of most of the subsequent improvements in horometrical machines) clearly shows that he had constructed a pendulum-clock previous to 1658. His reputation will be somewhat obscured, however, if we yield to the claims of an Englishman named Richard Harris, an ordinary workman, who, it is said, invented the pendulum-clock which was fixed in the turret of St Paul's, Covent Garden, in 1642, and which is generally believed to have been the first pendulum-clock in Europe. The pendulum when first applied to clocks was suspended by a silken cord, and the arc described by the bob or weight at its end was a segment of a circle, but it being found that this was in opposition to scientific knowledge, and that the curve described by it should properly be part of a cycloid or oval; Huygens tried to remedy the error by causing the silk cord in its motion to side or strike against a curved piece of brass, but he thereby caused a greater error than he corrected. Dr Hooke afterwards suspended the pendulum by a thin flexible piece of steel, the bending of which, as the pendulum swings from side to side, produces the required cycloidal motion. In 1658 Dr Hooke invented the Anchor Escapement which is still in use together with the flexible spring to the pendulum above described. Before, however, we proceed further with our historical summary of the progress of watch and clock making, it may be well to introduce here two illustrations of the watches worn by two of the most eminent Englishmen of about this period.

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The following watch was made about 1625 by Jonn Midwall in Fleet Street, who was Warden of the Clockmakers' Co. in 1635, and died about 1638. It is one of the early examples of a fob-watch. The case is of plain silver, fitted with glass over the face, and the chain of the same metal. The family crest of Cromwell was a demi-lion holding a ring in its paw, but the Protector substituted for the ring the handle of a tilting spear, as engraved on the chain; the Cromwell arms on the reverse, and the initials O.C., certify to its genuineness. The arms as engraved and the crest are identical with those on the banner used at the Protector's funeral. The silver seals which were at one time attached to this chain are now absent, but they were a few years back in the possession of some descendants of the Cromwellian family, who allowed Sir Charles Fellows to take impressions of them. The watch, as it is here engraved, remained for upwards of a century in Holland, was there purchased by an English nobleman who presented it to his godson, and by him given to Sir C. Fellows, who believed that it was probably worn by Cromwell from 1625 until his death in 1658. In shape it reminds one of the Nuremberg egg watch. The following is an excellent example of an early watch-case of the round shape still in use.

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The history of this watch is somewhat singular. From inscriptions which appear upon it, it seems to have been made by William Bunting, (whose name is entered upon the books of the Clockmakers' Co. as elected to their court in 1645, he being then resident in Pope's Head Alley, Cornhill,) in 1631, and presented to John Milton in the same year, which was the date of the poet's leaving Christ's College, Cambridge, and taking up his residence with his father in Horton, Buckinghamshire, he being then about 23 years of age. From that time down to the early part of the present century we have no record of the watch or its possessors, but that in 1819 it was bequeathed by the last surviving member of an old family in Baltimore in the United States, who had treasured it for some generations, to some old ladies residing near London, the bequest including also a number of coins of the reigns of Charles the 1st and 2nd, some medals of Fairfax and others, as well as a few rings, but nothing of a later date. The chest which contained all these relics safely arrived in London, and not long after was, with its contents, offered for sale to an eminent chronometer-maker. The coins and medals being in an excellent state of preservation were soon disposed of at high prices, but the watch being only silver gilt, and steel-faced, was considered to be of little value, and a few shillings only were allowed as a fair price for it. It was put into a drawer in its discoloured state and there remained until 1828, when for the first time the inscription on the face of it was discovered upon its being accidentally cleaned up, and it was then presented to Sir Charles Fellows, well known for his connoisseurship in such matters, and as a collector of ancient time-pieces. The maker's name upon the inside of this watch is thus given: 'Gulielmus Bunting, London, 1631.' Sir Charles Fellows died in 1860 and bequeathed this one watch only to the nation; but his relict, Lady Fellows, who died in 1874, left the whole of the celebrated collection of ancient watches which her husband had brought together, to the British Museum.

In 1675 Tompion, under Hooke's direction, made a watch with a spiral balance for Charles II. Up to this period watches had but one hand and only pointed the hours, but the spiral pendulum spring having been applied to the balance, it regulated the oscillations with some nicety, and the minute wheel and hand were soon after added.

A watch was found upon Guido Fawkes when he was arrested for the Gunpowder Plot, which had been purchased by Percy and himself the day before 'to try conclusions' for the long and short burning of the touchwood with which he had prepared to set fire to the train of powder.

The following is one of the earliest examples we have met with of an

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It is apparently of French make, date of 1660, and is a remarkably neat and small specimen of the watches of that time.

The annexed illustration is a curious example of a watch of the date of 1580, to which a pendulum was added in 1670, and which is still capable of keeping time.

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Our next illustration is another specimen of antique design and ornamentation.

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In 1676 Barlow, a London clockmaker, invented some mechanism whereby a person at night might ascertain, in the dark, the hour last struck, by pulling a certain part of it, and this contrivance gave the name of _repeater_ to all time-pieces in which it was used. For this invention Barlow tried to obtain a patent, but he was opposed by Daniel Quare and the Clockmakers' Company, who said that Quare was the original inventor. The question was tried by James II., and the decision given in favour of Quare. The following memorandum was entered upon the books of the Company with reference thereto. '1688, Sep. 29.--Be it remembered that in pursuance of the order of the Court of the 8th day of February, 1687-8, and according to the order of the Court of the 5th March, 1687-8, the patent endeavoured to be obtained by one Mr Edward Barlow, a priest, and to be granted to him by the king's majesty for his sole making and managing of all pulling repeating pocket-clocks and watches, he pretending to be the true and first inventor of that art and invention, was by diligence and endeavour of the Master, Wardens, and Assistants of this Company, with great charge and expense, which was borne by and out of the stock of the Company, very successfully prevented, and upon the 2nd March, 1687-8, ordered by the king in Council not to be granted.'

In 1695 Tompion invented the cylinder escapement with horizontal wheel, but this was not brought into general use until some time after, when it was much modified. It was, however, a very valuable invention, and exercised considerable influence upon the shape of subsequent watches, inasmuch as it dispensed with the vertical crown wheel, and permitted them to be made more flat and therefore more conveniently portable.

We now come to the time when the use of jewels was first invented and applied; and as these, by being so hard and uninfluenced by friction as to allow the pivots to play without wearing away,--as metal would do by constant action,--afterwards gained for the English peculiar fame as manufacturers of watches, we shall be excused for enlarging upon this point. About the year 1700 Nicolas Facio, a native of Geneva, having invented the use of jewels in watches, and failed in his attempt to persuade the Parisian watch-makers into the adoption of his notions, came to London. In May, 1705, he and two other watch-makers, Peter Debaufree and Jacob Debaufree, obtained a patent for his invention to extend over fourteen years. In December, 1705, he petitioned, as we shall presently see, to be granted a more extended term, and then the Clockmakers' Company opposed the application upon the ground of the invention not being a novel one, and in proof of their statement produced the watch, of which we give an illustration, as made by Ignatius Huggeford, a member of their own Company, some time before the application of the pendulum-spring. As this watch had a large amethyst mounted upon the cock or pivot of the balance-wheel, the Committee of the House of Commons were induced to decide against Facio's petition and to throw out his Bill.

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This watch has since then obtained an extensive historical reputation, and it is preserved in the archives of the Clockmakers' Company as one of their most valuable treasures, for it is the earliest known English jewelled watch, and is the identical instrument produced before the House of Commons Committee, as evidence to upset, and which did upset, poor Facio's claim for an extension of patent. Alas, for ancient reputations, it has been but recently discovered that Huggeford's watch was but a fraud, and that the jewel on the cock which deceived the Parliamentary Committee into supposing that Ignatius Huggeford, an Englishman, had applied jewels to watches long before Facio had been heard of, _has nothing to do with the working_ of the watch. The jewel has been merely stuck on, just in the place where a jewel should be; but as it is only fixed to the surface of the brass and no pivot plays in the jewel, it may be averred that the amethyst has no more to do with the movement of the watch than the silver ornaments on the watch-case. It is clear by the words in Facio's petition that his application of jewelling to watches was not merely done with the idea of ornamenting them,--in that there would have been no novelty,--and it seems probable that the amethyst would have been placed upon the face of the watch if the object of inserting it anywhere had simply been ornamentation; to speak plainly, none other than a fraudulent purpose could be served by its being placed where it is. It is, we fear, not impossible that the jewel was placed there at the insistence of some of the members of the Clockmakers' Company, who, being perhaps jealous of the foreign invention, and fearful of its effects upon their own private trade, were still unable to prevent the grant of a patent, in May, 1703, for fourteen years to the inventor. But by December of that year, when application was made for the extension of the patent, they had had time to consider affairs and to prepare their opposition. We may believe this watch to have been Ignatius Huggeford's, and to have been all that it was sworn to be by the members of that Company, but, when we remark that neither is any mention whatever made by them, nor, as far as it appears, any question asked of them before the Parliamentary Committee as to the jewel being upon the cock during the whole of the time of its being in their possession, we cannot but arrive at the conclusion that the jewel was placed upon Huggeford's old watch--the date of which could be shown--at the order of some of the members of the Clockmakers' Company with the purpose of defeating the patent, and that the Committee of the House of Commons were not as careful as they ought to have been in inspecting the jewel, for if they had, they must have seen the want of connexion between the amethyst and the pivot, which, it was pretended, was working in it. The probability is that at this time our English watch-makers scarcely knew how to apply a jewel, or otherwise they would have inserted the pivot in a proper manner. The story is anyhow a very extraordinary one, for, supposing the Clockmakers' Company to be innocent of conspiracy on the subject, it must have been a miraculously curious whim which possessed old Huggeford to insert a jewel as an ornament in a place where it would not be seen, and still more wonderful that it should, sham as it was, be placed exactly where it should suit the purpose of after-litigation. Of course there can be no imputation arising out of this incident to affect the members of the Clockmakers' Company of the present time, for they are no more answerable for what was done above a century and a half ago than the Parliament of to-day is to be blamed for allowing the execution of Charles I., or for enacting the laws which led to the loss of our American colonies.

After the invention of jewels for watches came a still more important discovery.

Since 1530, when Gemma Frisius first proposed to ascertain the relative longitude of any place or ship at sea, by means of an horological machine for indicating the time of the first meridian, the subject had excited the attention of most of our philosophers, but unavailingly, as there was then no chronometrical instrument, upon which reliance might safely be placed. Huygens, in 1664, had contrived a time-piece actuated by a spring and regulated by a pendulum, but the pendulum was affected by the tossing of the ship, and by a change of temperature, as well as being subject, as was afterwards discovered, to a variation in weight depending on the parallel of latitude. The Academy of Sciences at Paris proposed, in 1720, a reward for the best paper in reply to the question:--'What is the most perfect method of preserving on the sea the equable motion of a pendulum?' The reward was given to a Dutchman named Massy, but his plan was not carried out. An English watch-maker named Henry Sully happened to be about this time in Paris directing a large manufactory of chronometers, and he presented the French Academy with a marine time-keeper of superior construction to the time-pieces of that period, and accompanied his gift by a memoir describing it. Whilst still engaged in the study of his art, Sully, who was a clever man, unfortunately died, and the opportunity of advance seemed to have passed away.

About this time Graham invented the Mercurial Compensation pendulum, which consisted of a glass or iron jar filled with quicksilver and fixed to the end of the pendulum rod, which, when heat lengthened the rod, expanded simultaneously the quicksilver, and made the centre of oscillation to continue at the same distance from the point of suspension. He afterwards conceived a notion, which John Harrison subsequently worked out, of making a compensation pendulum (or a pendulum that should in itself contain the power of equalizing its own action, whatever the change of temperature), forming it of various metals. In 1726 Harrison invented what is called the gridiron pendulum, composed of nine rods, five of steel and four of brass, which are so arranged that those which expand most are counteracted upon by those of less expansion. These two compensation pendulums, the gridiron and mercurial, are still in use, and with slight improvements are found to keep to time very accurately.

The period had now arrived for the making of marine time-keepers sufficiently accurate for nautical use, and styled chronometers because they are most accurate time-measurers. Their value to navigators, and the immense impetus which would by such instruments be given to the science of navigation, had long been foreseen, but there were many great difficulties in the way of obtaining a perfect chronometer. The sailor, before the invention of this instrument, could ascertain the latitude of his ship at sea, by observation of the fixed stars. Supposing these stars to have first appeared to him in the zenith, and at his next observation to be one, two, or three degrees south of the zenith, he would know that he had sailed just so many degrees north of the place in which he first observed them. It was not, however, so easy for him to compute longitudes, because the diurnal revolution of the earth causes each meridian to pass successively under the same stars. It was necessary to have an accurate time-keeper, and to set it carefully to the solar time of some port in the kingdom, whose longitude was well known. The time-piece might then be carried out in a vessel sailing abroad, and the computations made by means of it would prove most wonderfully exact and important. By simply observing the moment at which the sun reached his meridian, when of course it would be 12 o'clock at noon, solar time, and then noting the difference between the solar time thus ascertained and the time of the chronometer, the mariner would be able by calculating 15 degrees to one hour of time, or 15 geographical miles to one minute, to make out his longitude. For example, if the time-piece had been set to time at the meridian of Greenwich observatory, and if it be one o'clock by the time-piece when it is mid-day, or meridian by the sun, then the place in which the longitude is taken must be in long. 15 degrees east of the meridian of Greenwich, and if it be eleven o'clock by the chronometer when the sun attains his meridian, then the place must be in long. 15 degrees west of the meridian of Greenwich. It is not indispensably necessary, that every chronometer used for maritime purposes should keep time exactly with that of the Greenwich observatory, or of any other instrument of known excellence, provided always that its _rate_ as seamen call it, or the daily loss or gain of the chronometer, is well ascertained, and so may be computed in the calculations to be made. The indispensable requisite of a chronometer, however, is that the daily loss or gain shall not vary materially from itself at different periods, or under the changes of temperature of different climates, and these qualities being found in an instrument of any shape or make, constitute a marine chronometer.

It will be generally obvious of what immense and universal importance it was for men who 'go down to the sea in ships and do their business on the great waters' to be provided with a chronometer, and so be enabled to calculate with a great degree of nicety,--almost as a traveller by land learns his distances by milestones and finger-posts,--the precise position on the wide ocean of the vessel they are engaged in navigating. So impressed was the British Parliament with the value of such an invention, that as early as 1714, in the reign of Queen Anne, a reward of £10,000 was offered, for any method for determining the longitude within the accuracy of one degree; of £15,000 within the limit of 40 geographical miles; and of £20,000 within the limit of 30 geographical miles, or half a degree, provided such method should extend 80 miles from the coast. In 1736 John Harrison invented the first chronometer, for which, after having added many improvements, he received the gold medal of the Royal Society in 1749. He still continued to persevere in improvements in his instrument, and at last applied to be allowed to test its powers in such a voyage as might permit of proof of its value. After some time his application was granted, and his son, William Harrison, embarked at Portsmouth, Nov. 18, 1761, for Jamaica. After eighteen days sailing the vessel was computed to be 13° 50´ west of Portsmouth, when the distance calculated by the watch was 15° 19´. When the vessel arrived at Madeira, on the 9th of December, it was found that the reckoning was corrected by the time of the piece, about a degree and a half. From Madeira to Jamaica the reckoning was amended 3°; and at the several islands where the ship touched the known longitudes agreed very closely with those indicated by the chronometer. Upon having returned again to England after a very stormy voyage, the instrument underwent examination, and its entire error amounted to 1^m. 53^s. 5. Harrison, on this report being made, obtained from Parliament a reward of £5000. A second experiment was afterwards made in 1764, in March of which year Harrison left Portsmouth with his instrument on board the Tartar for Barbadoes. He had previously conveyed to the Lords of the Admiralty his statement of the rates at which his chronometer went, and the extent to which it was affected by change of temperature. On May 13th the vessel arrived at Barbadoes, and it was found that the amount of the daily deviations from mean time was only 43^s. in excess. He returned to England after an entire voyage of 156 days, and found that, allowing the gain of one second per day as stated by him in his sealed 'rate,' the whole gain was only 54^s. Harrison then was examined by a committee appointed for the purpose, and, having explained satisfactorily to them the principles of his instrument, he received another £5000. A trial was then made by another person with a chronometer made upon Harrison's plan, and this experiment also terminating favourably, the remaining parliamentary reward was paid over to Harrison, amounting in all to £20,000, a sum which was still further increased by gratuities from the Board of Longitude and the East India Company.

Harrison's improvements in time-measuring were of considerable importance, as any one may readily conceive, but he was sufficiently candid to acknowledge that the balance, balance-spring, and compensation curb, as then used, were not simultaneously affected by changes of temperature, that small pieces were more readily affected than large ones, and pieces in motion sooner than pieces at rest, whence he concluded that if the provision for heat and cold could properly be arranged in the balance itself, as in his gridiron pendulum-clocks, the time might be better kept.

Harrison's suggestion of a compensation balance in lieu of a compensating curb, incited Peter le Roy, a native of France, to the consideration of the question, and ultimately to the invention of a balance acted upon by mercury and alcohol. The compensation was effected by the balance itself, which, carrying the two thermometers, adjusted the mercury nearer or farther from the centre of the balance, according to the state of the atmosphere.

About this period there was considerable emulation exhibited, both here and on the continent, upon the subject of time-measuring. Sully had aided largely in the advancement of the art of watch-making in London and Paris. Berthoud, Julien, and Pierre le Roy made many ingenious propositions, and amongst others the invention of the detached escapement is attributed to the last-named.

In England we find the names of Arnold, Earnshaw, and Mudge associated about this date with the greatest improvements in chronometry, and as being those to whom prizes were at different times awarded by the Board of Longitude. In fact, few great inventions have since been made in the art, and our present high position as chronometer-makers is mainly due to the skill, energy, and perseverance then exhibited.

It would be superfluous to give any detailed description of the many valuable advantages derived from the science of horology, to which indeed all arts, sciences, trades, and callings are considerably indebted, and will probably be still more so in proportion to the increase of the use of steam-power and electricity. As by means of these recently-discovered powers mankind are enabled to compress into a day what would previously have required weeks and even months to accomplish, so must they regard with higher esteem, as these improvements are extended, the science by means of which they may divide and subdivide the precious minutes which are sufficient to perform so much. It will be worth while by way of illustration to point to the assistance given by horology to astronomical and nautical science. It is by means of carefully-made and exact chronometers that we calculate the distance and relations of the various heavenly bodies to ourselves and to one another. Having ascertained, by comparison, the rapidity of light and sound, and that the former travels at the rate of 192,000 miles per second, we discover that the light of the sun requires eight minutes to reach the earth, and thus compute the sun's actual distance from us. So also observing the number of seconds which elapse between the flash of lightning and the roll of thunder, or between the flash and report of a cannon, and remembering that in mild weather sound travels at the rate of 1123 feet, and in frosty weather 1080 feet in a second, we shall be able, on making allowances for the state of the atmosphere, to arrive at a tolerably correct conclusion as to distances. It is by means of a chronometer, though it be but a sand-glass, that the sailor uses his log-line at sea and finds the rate of his vessel's speed. His lead, enclosed in the log, or wood, is attached to the log-line, which has certain lengths called knots marked upon it for nautical miles, and according to the knots paid out in the half-minute of the sand-glass, so is the ship's rate of sailing, _i. e._, if ten knots are passed in half a minute the vessel's speed is at the rate of ten miles an hour.

It would be both impossible and unnecessary to describe the various experiments in which it is of great consequence to measure time into minute proportions,--the number of these increases with advancing science; it will suffice if we have made the subject sufficiently interesting to the general reader to induce him to inquire further into the details. It is only by such investigations that he will be enabled to give anything like a proper answer to the question 'What is Time?'

MODERN WATCHES:

THEIR VARIETIES AND MODES OF MANUFACTURE.

'He that would wear a watch two things must do,--
Pocket his watch and watch his pocket too.'--_Old Maxim._

The first possession of a watch by young persons of either sex is perhaps one of the most vividly retained of all their early memories. The sense of responsibility, of importance, which such a wonderful little piece of mechanism gives to them, the alacrity with which they thenceforth note the flight of time and compare the working of all other time-pieces, is remarkable. One of the first things usually done by the juvenile with his or her watch is, curiously enough, to challenge thereby the performance of the old-established time-pieces in the house,--even the infallible old Hall Clock, a very Nestor among clocks, does not escape scrutiny. Woe be to his ancient reputation if, when 'weighed by the new balances'--compensation or otherwise,--he be 'found wanting.' The yet unfledged urchin will, upon the evidence of his own newly-acquired chronometer, unhesitatingly expose and denounce the slightest delinquency of the antique time-piece, and pride and plume himself accordingly. At this time of day, when watches of a sound and durable kind may be had for a comparatively small sum, and when education commences so early, it may be supposed that youths attain earlier to years of discretion, and so rise to the dignity of watch-wearers sooner than their predecessors did. Anyhow, the value of time can scarcely be inculcated at too juvenile an age, nor can it be brought home to the mind of the pupil without providing him with the means of studying the operations of his own personal time-keeper. From the hour when such a gift comes into his possession until the latest day of his life a watch remains his indispensable mentor, and, literally, his bosom-friend. There are few, perhaps none, who can look upon the face of an old watch, their day and night companion for many years, without associating it with the bygone times when it reckoned off for them their moments of pain or anxiety, their joys and sorrows. There is perhaps scarcely any memento of a friend or relative so suggestive as that semi-living object which has been his constant friend for so long, the chief valuable of all his 'portable property.'

Our Old English popular rhymes and songs have frequently been pointed with witticisms directed at the care with which watches have been guarded, or the dexterity with which they have been filched away. Who can overlook the evergreen old dramatic joke, of which the point consisted in connecting the time-teller with the name of the ancient street-guardian; _e.g._:--

'I knocked him down, then snatched it from his fob.
"Watch, watch!" cried he, when I had done the job;
"My watch is gone!" said he: said I, "Just so,
Stop where you are, watches were made to go."'

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Who can forget Dickens's description of the watch of the wonderful Captain Cuttle, which, if you set so far forward at night and so far backward in the morning, was asserted to be 'a watch that would do anybody credit;' or again, how can we omit mention of that earlier Dickensian figure, mentioned by Sam Weller, wearing his enormous watch with so much happy fearlessness, his seals dangling from his fob, the continual temptation and despair of eager pick-pockets, whose ineffectual efforts to abstract the watch from such a tightly-protuberant stomach, were the never ceasing delight of its jolly proprietor? Who shall narrate the characteristics of the various fashions in watches, and the trinkets that were worn along with them, the manners of the fine gentlemen who carried two at a time soon after swords were exchanged for walking-canes, and when pantaloons anticipated the easier but less graceful trowsers? Snuff-boxes, bag-wigs, pig-tails, high cravats, shoe-buckles, have all gone more or less out of fashion, but the watch is a perennial, which may indeed change its outer-casing and its decorations, like man himself, but knows no period of absolute disuse since first it started into being.

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From the time when the first Nuremberg egg-watch was produced, there has always been noticeable an endeavour to make pocket time-pieces more and more small and portable so far as they could be made so consistently with their durability. Sometimes the love of very minute workmanship has been carried to an extreme, but toy-watches of eccentric shapes and patterns are but the few exceptions to the general rule, which has settled that usefulness and convenience are best provided for within certain moderate sizes, and that of all shapes the round and flat are the most easily carried. The great object of the watch-maker's ambition is to produce a time-keeper minutely accurate, and yet not so delicately constructed that it cannot withstand the rough usage to which even moderately careful wearers subject it.

It has been estimated that the manufacture of and trade in watches annually in England, France, Switzerland, and America, amount to over £5,000,000 per ann.; and that in Switzerland alone there are 38,000 persons, one-third of whom are women, engaged in the manufacture. It is probable that even the immense number of new watches thus annually produced barely exceeds the growing requirements of the people, who, as they increase in intelligence and receive higher wages, soon learn the advantage of personally possessing a pocket time-keeper, and make it accordingly their first ambition to purchase one. The Watch Clubs which are formed in the various towns and rural districts throughout the kingdom enable this desire to be gratified at but small pecuniary inconvenience, inasmuch as payment is thus made in small instalments at fixed intervals, and the watch is bought with sums which might have been spent thoughtlessly and to no permanent benefit. This first lesson in thrift having been well learnt, and the result being so palpably beneficial to those who exercise it, has often laid the basis of a regular habit of economy.

The motive power in the watch is derived, not as in the clock from weights, but from a spiral spring called THE MAINSPRING, set in a drum or barrel, and any inequality in the pressure of the spring is fatal to regular time-keeping. A highly tempered and finished spring is a primary requisite in watch-making; in order to provide for the uniform transmission of motive power from the barrel throughout the train to the escapement, the fusee and chain are used, the fusee being a hollow-sided cone, and the chain round it. When the spring is wound up its force is of course greatest, for the chain is then acting on the smallest end of the fusee. The proportions of the barrel to the centre wheel, and the size of the teeth in that wheel, have all to be carefully planned, and adjusted to one another, and these all again to the moving of the hands upon the dial.

The ESCAPEMENT is one of the most important parts of the mechanism of a watch. It may be one of either of the following.

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The _Verge_ escapement, as applied to Watches, will be seen annexed, A, part of the balance; _b_, the verge body; C, C, the pallets; D, the escape-wheel; E, escape-wheel pinion. The verge or arbor B of the balance has two pallets, C, C, which stand out at right angles, so as to be acted on alternately by the sloping teeth in the opposite sides of the crown or escapement-wheel, C.

The _Horizontal_ escapement, on the following page, so called because of the escape-wheel acting horizontally to the axis of the balance. This invention was perfected by Graham, after the death of the inventor, his master and friend, Thomas Tompion. _a_, the escape-wheel, having pins or stems rising from it, on the tops of which are teeth of a wedgelike form, of such a length as to permit little freedom within and without the cylinder _b_, which is firmly fixed to the balance _c_. Although _b_ is one piece, the two edges of the hollow part serve as distinct pallets, inasmuch as they receive alternately, during each vibration of the balance, an impulse from the curved outer edge of each tooth in succession; and as the wedge-shaped tooth passes from the pallet, the coming tooth falls on to the circular part of the cylinder, and there remains until the return of the balance, when that tooth which had previously rested on the circular portion of the cylinder, comes upon the edge or pallet, gives impulsion to the balance _c_, and falls upon the concave portion of the cylinder, and there remains until the balance again returns, when another impulse takes place, and so on in succession. Watches having the cylinder escapement were not known in France till the year 1728, when Julien le Roy obtained one of them from Graham.

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The _Duplex_ escapement is of a very peculiar construction, and nearly approaches the chronometer; it is probable that it was originally invented by Dr Hooke, although, as we now have it, it came from the hands of Tyrer. It is seen in our illustration. A, the escape-wheel; B, the escape-wheel teeth; C, the balance; D, the pallet of impulse; E, the ruby roller; F, a notch in ditto: 1, 2, 3, cogs or upright teeth on the rim of the escape-wheel. The balance is supposed to be turning downwards towards the right, the tooth of the escape-wheel just resting against the ruby roller. When this (which is called the return) vibration is complete, the balance, by the strength of the hair spring, is carried in the opposite direction, and as the notch F passes the tooth of the escape-wheel, this latter is enabled to pass the roller, and the upright tooth or cog falls upon the pallet D, and thus gives impulse to the balance. The next straight tooth of the escape-wheel is now resting against the roller _e_, and the same operation again takes place. This escapement is much superior to the horizontal, and is almost independent of oil. It can carry a balance of much greater weight, and when well made performs admirably. Duplex watches, however, should never be selected by persons who are accustomed to ride on horseback, as these instruments are liable to be affected by any sudden motion. Even the stepping quickly from a vehicle may stop them, and yet the escapement be as perfect as possible. They are only adapted for persons of very quiet habits. Thomas Mudge, in the year 1766, introduced an admirable invention, which, after many alterations and improvements, is now universally known as the '_Patent Detached Lever_' escapement, represented by--_a a_ the escapement-wheel, _b b_ the ruby pallets, _c_ the lever, _d_ the balance. On the axis of the balance _d_, towards the lever _c_, is a small disc of steel, into which is inserted a small pin made of ruby. This pin fits with great nicety into a notch or opening in the end of the lever _c_, upon which are firmly fixed the two pallets _b b_, into which are secured rubies very finely polished. The balance in its vibration on either side, carrying with it the steel disc and ruby pin, causes that pin to enter the notch in the lever and carry the lever with it, and at the same time, to draw the pallet from the tooth of the escapement-wheel _a_. Power being exerted upon this wheel by the mainspring, the wheel tooth gets disengaged from the locking-face of the pallet, forces itself down the slopes of the pallet, and thus gives impulse to the balance. At each vibration the same unlocking takes place, but as soon as the wheel tooth falls from the slope, the opposite pallet is prepared to receive the advancing tooth of the escapement-wheel, and so on in succession beat after beat takes place. So excellent was this escapement considered a few years back, that chronometers were made upon the principle, and placed in the Royal Observatory for public trial. But since then many improvements have been made in it, so that makers are now enabled to produce a pocket watch, with the short angle lever escapement, which marks time at a steady rate of within four or five seconds weekly,--a rate which approaches so near to the time-keeping of a pocket chronometer, that unless the minutest exactness for some specific purpose is required, the last-named watch is all that can be wished for.

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About the year 1780 was invented the escapement which is now denominated the Detached or _Chronometer Escapement_ (see opposite page), the principles of which are the nearest approach to perfection, the impulse to the balance being given at the centre of vibration. A is the escape-wheel, B the escape-wheel teeth, C the roller let on the verge, or axis of the balance. This roller is a circle of polished steel, with a notch cut out of it, into one side of which, D, a flat polished piece of ruby is inserted for the acting part. Below this steel roller, carried on the same verge, is a smaller roller of steel (E), denominated the discharging pallet, having a sapphire fixed on its outer edge. F is a slender spring, which is screwed at I to the stouter one, having its fixture at the stud L, and polished away very thin at K, in order that it may bend readily, so as to cause very little resistance to the balance while forcing it on one side. G is a projecting piece, carrying an upright pin made of ruby, against which the wheel tooth B rests; at B is a small screw against which the spring L K G strikes, and thus prevents it from springing too far back. The action of these parts is as follows:--When at rest the circular edge of C is just clear of the two teeth of the wheel B, which cannot be set in motion while E and G remain quiescent; G rests against the screw at B, and the tooth resting against the locking pallet G, the escapement-wheel cannot turn. To set the chronometer going it is necessary to give it a rotary motion, which sets the balance in action. This causes the lower piece on the verge (called the lifting piece or discharging pallet) to strike against the end of the spring F, which, from its over-lapping the curved end of the prolonged spring K G, pushes it back, and thus releases the pin or locking stone G from before the tooth of the wheel: that is, it unlocks the escapement-wheel, which is immediately set in motion by the force of the mainspring. The same vibration given to balance and verge brings the ruby pallet D round before the tooth B, which strikes against it and carries it round. The recoil of the spring F has now brought the locking pallet G to catch the tooth B, the escapement-wheel is thus again stopped. But the stroke of the tooth upon the face of the ruby pallet D has driven the balance on in its vibration till it is counteracted by the tension of the balance spring, which brings it back again; in this return vibration the lifting pallet E, by its curved back, pushes the slender spring F before it, and passes it without affecting K, G, which is stiff enough to remain unmoved by F, even when this strikes and rests against it in recoiling. The wheel, therefore, continues locked on the upright pallet G, and the vibration proceeds uncontrolled till the great pallet is again brought round, and the balance spring again checks the vibration, the above process being repeated. In this escapement, consequently, part of one vibration in one direction, and the whole of that in the other, is performed without the balance being in any way under the influence of the motive power; while the parts are so contrived that the impulse given by the tooth of the escape-wheel, affects in a very slight degree the natural motion of the balance. It can be easily understood that the lifting pallet E can pass the spring F in one direction without moving K and G, while in the other it carries E and G with it.

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Several appliances have been from time to time introduced to correct the error in time-keeping caused by variations in the temperature, but none have come into such general use as that known by the term '_Compensation Balance_,' invented by Thomas Earnshaw, of London, and for which he received a government reward. This balance, when properly adjusted, causes the watch to keep the same time whether the temperature be 32 deg. or 90 deg.; while without it a watch will show a considerable difference in time, on being merely transferred from the pocket to the dressing-table, where, probably, the temperature would not be so high. Our woodcut represents a balance of this kind; the divided rim A A, is composed of steel and brass run together by fusion, the more expansible metal, brass, being placed outwards, the result of which is as follows:--Heat elongates the pendulum spring, and thereby causes a slower vibration of the balance. The same amount of heat will also expand the metals composing the balance; but as the inner rim of steel does not expand so freely as the outer one of brass, the conflicting action of the two tends to draw the free end of the circular rim inwards towards its centre, and thus decreases in all but one direction the diameter of the balance. This decrease tends to _quicken_ its vibration, and thus counteracts the effect of the elongation of the pendulum spring. In cold temperatures the pendulum spring is contracted, making the vibrations quicker, but the contraction of the brass rim draws the free end outwards, thus increasing its diameter, retarding its vibrations, and counteracting the effect of the contraction of the pendulum spring.

Many contrivances have been introduced to test the equality of compensation balances, but the majority have been abandoned from the circumstance that the heat was not equally distributed to the watches under trial. In pursuance of this object, an oven was invented, heated by hot water, which answers the desired end. It is an apparatus made of copper, two feet high, thirteen inches broad, and eight inches deep. From the top to the bottom, at the distance of fifteen inches, it is divided into two compartments. All around the upper one (except the front, which has a glass door through which the chronometers and watches are seen without opening it) is one inch of water. It has a chamber thirteen inches high, eleven inches broad, and seven inches deep for the reception of chronometers and watches. The water is introduced at the top in the same manner as a solar lamp is supplied with oil. The bottom compartment contains a jet of gas, which can at pleasure be regulated so as to keep the watch at any required temperature. The heat radiated from the inner surface of the chronometer chamber is thus equally distributed among the instruments under trial. A thermometer placed within the upper chamber indicates the temperature, and by this simple apparatus a watch can be regulated with the greatest nicety to suit the particular climate into which it may be taken.

The DIAL AND HANDS should be sufficiently in contrast one to the other to show the time at a glance. Dials are sometimes made of gold or silver, but these are not so distinctly seen as white enamelled dials, with black figures or numerals, and dark blue steel hands; the enamelled faces, although, perhaps, more brittle than gold or silver dials, are therefore in greatest request. Up to a comparatively recent date the seconds' hand was placed upon the level face of the watch, but sunk seconds are now everywhere in use, even in the cheaper sorts of watches. The chief objection taken to the sunk seconds is that it disfigures the dial by breaking the uniformity of the numeral letters, the VI being of course obliterated to make room for it, but this obliteration seems of smaller consequence than the confusion which may arise from the use of longer seconds' hands and their being at any time mistaken for that of the hour or minute.

The JEWELLING of a watch is an important part of its manufacture, inasmuch as it is by means of jewels that durability is chiefly secured. Watch pivots would rapidly wear out the metal in those parts in which there is continual friction, and jewelling has therefore become general. The watch-maker uses for his best watches a peculiarly hard kind of ruby, which has been known to withstand the wear and tear of the best part of a century without showing symptoms of yielding, whereas inferior jewels are perhaps scarcely so hard as the best tempered metal.

The FRAME, usually of brass gilt, sustains both ends of each axis, and is now principally designed to fit a full-plate movement or a three-quarter-plate movement. The former is undoubtedly the more simple construction, but with considerable disadvantage in taking to pieces the watch and putting it together again when repairs are needed. The examination of the escapement in a full-plate watch, and the cleaning, or altering, or oiling which may be needed, cannot be done without taking the whole movement to pieces. The three-quarter-plate movement is not only preferable on account of its superiority in respect to solidity, and the economy of labour in its manufacture, but from its being flatter than the full-plate watch, and allowing of repairs being more easily made.