Chapter X

BOOKS AND ARTICLES ON PHOTOGRAVURE. PUBLISHED FROM 1888 TO 1893.

LA PHOTOGRAVURE facile et a bon marche. Par l'Abbe Ferret. Paris. 1889. Price, 1 fr. 25 cents.

Manuel d'Heliographie et de Photogravure en Relief. Par G. Bonnet. 1890. Paris. 2 fr. 50 cents.

Photogravure. By W. T. Wilkinson. 1890. London, E. C. Published by Messrs Iliffe & Son, 3 St. Bride Street. Price, 1_s._ 6_d._

Photo-Engraving and Photo-Etching. By W. T. Wilkinson. Sold by The Scovill & Adams Co., New York. Price, $3.00.

Hamerton's "Etchers and Etching." Roberts Bros., Boston, Mass. Price, $4.00.

Photo-Etching in India. Article in _Photographic News_ (English), November 1, 1889.

"Photogravure, or Photographic Etching on Copper." By Herbert Denison. A lecture delivered before the Photographic Society of Great Britain. Printed in THE PHOTOGRAPHIC TIMES, April 21st, 1893, and following issues.

Photogravure or Photo-Etching. Article in _Wilson's Magazine_, 1890-1891.

Notes on Photo-Aquatint. Catalogue of Exhibition, Illustrating the Reproductive Arts and Photo-Mechanical Processes. Address S. R. Koehler, Boston Art Museum, Boston, Mass.

* * * * *

Merck's Pyrogallic Acid

will be found, upon comparison, to be _superior_ in every respect to
all other brands on the market. Its distinctive points of superiority
are:

1ST.--ABSOLUTE PURITY
2D.--PERFECT CRYSTALLIZATION
3D.--IMMACULATE WHITENESS
4TH.--EXTREME LIGHTNESS
5TH.--MODERATE COST

(Its price is not higher than that of any other make.)

Merck's Pyrogallic Acid

produces the highest intensity to be desired in a photographic plate,
and, at the same time, the finest detail in light and shade required
for the most perfect printing negative.

Under ordinary precaution, it retains all its superior qualities
undiminished for an indefinite length of time.

WHEN ORDERING SPECIFY "=MERCK'S.="
TO BE HAD OF ALL DEALERS.

TESTIMONIALS.

"I have tested Merck's pyro carefully in comparison with the other
pyros at present on the market, and I find that it is superior to
any and all of them."

Prof. CHARLES EHRMANN,
Instructor of the Chautauqua School of Photography.

"I shall, in future, certainly use no other pyro but Merck's. The
best is always good enough for me."

ALFRED STIEGLITZ,
Editor _American Amateur Photographer_.

"Merck's Pyrogallic Acid will be found a very superior article. Its
purity is absolute, with quick crystallization and immaculate
whiteness. In use, it produces the highest intensity that can be
desired in the negatives. The detail in light and shade is perfect,
producing printing qualities unsurpassed by any pyro we have ever
used."

ST. LOUIS AND CANADIAN PHOTOGRAPHER.

"Merck's pyro has undergone a severe test in my hands. I find it to
possess many qualities which give it superiority over all other
makes. Authorities place the solubility of pyro as one part in two
of water. I found one ounce of Merck's to dissolve readily in 1:7 of
water at 60 deg.. It is extremely light, pure, and of a fine white
color, giving rich negatives full of vigor and sparkling
brilliancy."

WALTER E. WOODBURY,
Editor of _The Photographic Times_.

"I have used Merck's Pyrogallic Acid, and prefer it to all others."

B. W. KILBURN,
Official Photographer (Stereoscopic), at the Columbian World's
Fair, and San Francisco Mid-Winter Exposition.

"I have tried Merck's pyro and must certainly say it is the best I
ever used. The results I have obtained with it are remarkably fine."

W. B. POST,
Amateur Photographer, New York.

MORENO STUDIO, Fifth Ave., New York.

"I have been using Merck's pyro in my studio, and am very well
pleased with it. It is clean, gives brilliant negatives, and is
reliable, one day's work being exactly the same as another's."

A. MORENO.

"I have been using Merck's pyro, and am ready to indorse the high
praise which you have found it entitled to: 'that it is superior in
point of purity, lightness and solubility' to any like product that
I have seen. In fact, 'the new and improved process' seems to reach
in its result the point beyond which it is impossible to go--that
is, perfection. This was my impression at first sight, and using
serves only to confirm it.

In my opinion, pyro stands at the head of all developers of dry
plates, and I am much mistaken if Merck's pyro, when known, does not
lead all brands of pyro."

W. H. SHERMAN,
Professional Photographer, Milwaukee.

* * * * *

Scovill & Adams Photo-Engraving Materials,
Combined in a small outfit for Half-tone Photo-Engraving.

The articles contained in this outfit are all that is necessary for
the Half-tone Process, except when the installation of large and
expensive machinery is warranted.

1 10 x 12 American Optical Co. Enlarging, Reducing and
Copying Camera, fitted with Patent Screen Plate
Holder $56.00
1 Camera Swing 20.00
1 Copy Board 2.00
1 Max Levy Screen, 133 lines to the inch, 10 x 12 80.00
1 Max Levy Screen, 150 lines to the inch, 10 x 12 95.00
1 Rectilinear Lens, Rapid Paragon, 10 x 12, w. D. 68.00
2 2-qt. Funnels, glass, 25c. .50
6 8-oz. " " 12c. .72
1 pkg. No. 33 Filtering Paper .75
2 Hydrometers, 50c. 1.00
2 11 x 14 Glass Baths in Studio Box, $7 14.00
1 Rubber Dipper .60
1 2-gall. Evap. Dish 3.00
2 10 x 12 Porcelain Trays, $1.66 3.32
2 10 x 12 Vulcanite Trays, $1.75 3.50
2 16-oz. Graduates, 75c. 1.50
4 4-oz. " 30c. 1.20
1 9 x 11 Printing Frame, 1-in. glass 9.50
1 8 x 10 Retouching Frame 3.75
2 large Neg. Racks 6.00
1 13-in. French Hand Roller 7.00
1 Composition Roller, 12-in. 4.00
2 Pincers 2.00
2 Acid Brushes 3.50
1 Ink Spatula 1.00
1 Hook for cutting Zinc Plates 1.50
Retouching Brushes .50
1 gal. Absolute Alcohol 4.00
31/2 lbs. Ether 2.63
4 oz. Pary's Gun Cotton, 50c. 2.00
4 oz. Iodide Potass., 30c. 1.20
2 oz. Resubl. Iodine, 35c. .70
3 lbs. Nitrate Silver Crystal, $8.50 25.50
1 lb. Absorbent Cotton, 1 lb. packages .75
5 lbs. Protosulph. Iron, 10c. .50
1 lb. Citric Acid .70
1 " Bichloride Mercury 1.00
5 " Cyanide Potash 3.25
1 " Glycerine .30
5 b'ks Blue Litmus Paper, 5c. .25
1 lb. Aqua Ammonia fort. .32
1/2 lb. Nitric Acid, C. P. .45
1 gall. Benzole 1.50
1 lb. Bichromate Ammonia .75
1 " Caustic Potash .15
8 " Com'l Nitric Acid, 45c. 3.60
1 " Ferri Chloride, 1 bot. .30
1 " Rubber Cement, 1 can .30
1 " Nitrate Lead, 1 bot. 1.00
1 " Ferricyan. Potash, 1 bot. 1.00
1/2 " Transfer Ink 2.50
1/2 " Engraver's Charcoal 1.50
1 " Pumice Stone .10
5 " Sulphate Copper, 40c. 2.00
2 " 3/8-in. Brass Pins, 40c. .80
1 " Lith. Ink, black 3.50
2 galls. Le Page's Liquid Glue, $2.25 4.50
1 Shoot Board and Plane 25.00
1 set Engraving Tools 1.50
1 " Finishing " 2.50
1 1/2-in. Flat File .50
1 1-in. " .85
1 set Ass'd Sable Pencils, Nos. 1 to 6 .62
1 Darlot Focusing Glass 2.50
1 5-in. Engraver's Pad, filled 1.00
1 Egg Beater .30
1 set Roulettes 6.00
1 ream Proof Paper 10.00
1 16-oz. plain Collodion Vial .55
1 lb. best Dragon's Blood .85
Polished Zinc Plates, sq. in. .01
" Copper " " .011/4

SEND FOR THE PHOTO-ENGRAVERS' CATALOGUE to
THE SCOVILL & ADAMS CO., 423 Broome St., N.Y.

* * * * *

Copying Cameras
FOR
PHOTO-ENGRAVING.

The Scovill Enlarging, Reducing and Copying Cameras.

With S. & A. Photo-Engravers' Adjustable Screen Plate Holder.

No. 61. Size, 61/2 x 81/2, 4 ft. bed Price, $38.00
" 62. " 8 x 10, 5 ft. bed " 43.00
" 63. " 10 x 12, 5 " " 56.00
" 64. " 11 x 14, 5 " " 68.00
" 65. " 14 x 17, 6 " " 80.00
" 66. " 17 x 20, 7 " " 95.00
" 67. " 20 x 24, 7 " " 118.00

_Special sizes and styles made to order._

The form of construction of this Camera is made apparent
by the illustration here shown.

* * * * *

SCOVILL
COPYING CAMERAS.

With S. & A. Photo-Engravers' Adjustable Screen Plate Holder.

These Cameras are made of hardwood, shellacked, not varnished.
Naturally they are without swing, but in every requisite they are
complete; and for this particular service, as well as others, the
American Optical Company's make is sought for before all others.
Such varied lengths of bed are required and ordered, that we can
only give a price list for Copying Cameras with the regulation
length of bed. We make them to order of any length of platform
desired, either rigid or detachable, and with either single or
double bellows.

Estimates promptly and cheerfully furnished.

No. 70. 61/2 x 81/2, with bed 3 feet in length Price, $33.00
" 71. 8 x 10, " 33/4 " " 38.00
" 72. 10 x 12, " 4 " " 46.00
" 73. 11 x 14, " 41/2 " " 53.00
" 74. 14 x 17, " 5 " " 66.00
" 75. 17 x 20, " 6 " " 72.00
" 76. 20 x 24, " 6 " " 98.00

_Larger sizes made to order._

When ordering Copying Camera, please give length of cone, if that is
needed.

* * * * *

The S. & A. Photo-Engravers' Adjustable Screen Plate Holder.

(Patent applied for.)

This Holder, as is shown in the cut above, is a great improvement
over any heretofore manufactured for photo-engraving purposes. Its
principal points of superiority are, briefly:

First.--The ease with which it is adjusted for different size plates
and screens, by a simple sliding movement of the two inside frames
to or from the centre, and thus dispensing with the expensive and
troublesome use of kit frames.

Second.--The convenience by which the screen plate is accurately
adjusted to the sensitized plate by means of the metallic sliding
adjusters. (Heretofore it has been necessary to do the adjusting by
means of inserting different thicknesses of cardboard, paper, etc.)

Third.--Different thicknesses in the screen plates are allowed for
by means of a spring which always holds the plate in accurate place,
no matter what its thickness may be.

Fourth.--A graduated scale on each screen adjuster makes it easy to
always insure absolute accuracy in determining the distance of the
screen plate from the wet plate.

Fifth.--The simplicity of construction and excellent workmanship of
the entire holder, being made, as it is, in the factory of the
famous American Optical Company.

And, altogether, it is an ingeniously designed and beautifully
constructed holder, which will be found of indispensable aid to the
practical photographer.

These holders are thicker than the ordinary plate holders, and if it
is desired to use them on a camera the ground glass of which is
focused for the ordinary plate holder, a new ground glass frame is
necessary in order to adjust the focus. When ordering a holder to
fit a camera in use, send the old holder or the old ground glass
frame, so that the new ones can be made to fit the camera. Also
state the size of largest and smallest screen plate to be used in
holder.

It is made in various sizes. Prices as follows: Frames _only_;
for Ground Glass.

8 x 10 size $15.50 $1.50
10 x 12 " 21.00 1.50
11 x 14 " 26.50 1.88
14 x 17 " 29.00 2.25
17 x 20 " 32.50 2.63
18 x 22 " 36.00 2.63
20 x 24 " 40.75 3.00

If adjustment from the outside of holder is desired, add $2.00 to
above prices.

THE SCOVILL & ADAMS CO., 423 Broome St., New York City.

* * * * *

The Scovill Printing Frames for Photo-Engraving.

The Printing Frames made by the American Optical Co. for
photo-engraving are like everything else manufactured by this
factory, of the highest degree of perfection, and the utmost care
was given to the comparative distance of screws so as to produce an
even pressure. Many negatives have been either ruined or snapped by
the use of imperfect Printing Frames.

The American Optical Co. Printing Frames for photo-engraving are the
only safe ones on the market.

PRICES.

8 x 10, including one-inch glass $8.00
10 x 12, " " " 11.02
9 x 11, " " " 9.50
11 x 14, " " " 13.00
14 x 17, " " " 19.00

Larger and special sizes made to order.

* * * * *

To Photo Engravers:

Having systematically undertaken the improvement of photo engravers'
appliances, we follow the S. & A. Photo Engravers' Adjustable Screen
Plate Holder, and the S. & A. accurately adjusted Photo-Engraving
Printing Frames, with the

S. & A.
Photo-Engraving Etching Tub,

to which we call the attention of those interested in this business.
We extend to them a cordial invitation to examine the same at our
salesrooms.

These Photo-Engraving Etching Tubs will "fill a long felt want" with
the photo engravers, as they are constructed so as to resist the
strongest acids, and combine the features suggested by practical
experience.

The tub measures, inside, 481/2 inches long, 201/4 inches wide,
and 7-5/8 inches deep, and the price of same is $10.00.

Very truly yours,

=The Scovill & Adams Co.=

* * * * *

IN OLDEN TIMES

people were satisfied to worry along with whatever crude appliances
came easiest to hand....

=The material progress= of the nineteenth century, however, has
created a demand for a higher order of mechanical products than was
formerly deemed essential, and this is peculiarly the case with....

Process Engravers.

=To meet this demand=, the firm of JOHN ROYLE & SONS have devoted the
best part of their time, for the past 25 years, to the improvement of
the mechanical accessories to Process Engraving, and with what
success is best testified to by the fact that their machinery is
used exclusively by the _best_ Process Engravers, both in the United
States and abroad.

JOHN ROYLE & SONS,
Paterson, N. J., U. S. A.

* * * * *

Chrome=Gelatine and
Photo=Gelatine.

Chrome-Gelatine is a perfected modification of the three-color
printing process. It is so named from the Gelatine process of
printing being used to produce the resulting pictures, which are
allowed to be really wonderful, and which may be reproductions from
original Oil Paintings, Water-colors, Views from Nature, Objects of
Still Life, Textile Fabrics--indeed, all classes of work copied from
originals in color. The results, in all cases, are produced from
three-color negatives. Artists, whose works have been reproduced by
this method, express their satisfaction of the results in the
highest terms, without qualification.

N. Y. Photogravure Co.
137 West 23d Street,
New York.

* * * * *

Photogravure and Aquarelle

(_Photogravure in Colors._)

Photogravures are of all classes of subjects.

An important modification of this process has recently been perfected
(patent applied for), by which the delicacy of the gelatine print is
maintained, at the same time that great strength and color is produced
in the shadows. The plates thus made are very durable, and show but
little wear after many thousands of impressions have been produced.
Moreover, they require no finishing or handling after having been
etched, and are quite easily printed.

Aquarelles are printed from photogravure plates, inked up locally in a
variety of colors. When the whole of the plate has been so inked, the
impression is pulled. The results are beautiful, but the process of
printing is exceedingly slow--three or four impressions a day, only,
being obtainable from a moderate sized plate.

N. Y. Photogravure Co.
137 West 23d Street,
New York.

* * * * *

Publications

THE N. Y. PHOTOGRAVURE CO. has on hand thousands of subjects of all
classes, available for the purposes of illustration, and at the
service of its customers. The newest and best subjects are being
continually added to this collection. Sets of illustrations selected
with the greatest care and skill, for any desired purpose.

The N. Y. Photogravure Co.
137 West 23d Street,
New York.

* * * * *

SUN AND SHADE.

An Artistic Periodical.
Published Monthly.

Forty cents a number. Four dollars a year. Each number contains eight
exquisite Photogravures, Photo-gelatines or Color Prints, by the
new Chrome-gelatine process, printed on paper 11 x 14 inches, with
descriptive letter-press. Six volumes are now complete, price $4.00
each. Each volume contains nearly one hundred plates. The whole six
volumes form a complete gallery of current art.

"SUN AND SHADE reproduces not only the most notable paintings
and portraits, but the best work of amateur and professional
photographers. If it gave nothing but the latter work it would be
deserving of the most liberal patronage that it receives; but it is
an admirable record of the greatest paintings at the Metropolitan
Museum of Art, of living American players, of portraits of celebrated
Americans, of great American painters, with reproductions of their
work, and it is a monument of the N. Y. Photogravure Co., which is a
monument of artistic New York."

The N. Y. Photogravure Co.
137 West 23d Street,
New York.

* * * * *

ALFRED SELLERS & CO.

MANUFACTURERS OF ZINC COPPER AND BRASS PLATES FOR Photo-Engravers.

Printing Frames, Etching Tubs, Etching Powders, Rollers, Etc.

SELLERS' SPECIAL TRANSFER.
ETCHING AND PROVING INKS.

Inking Slabs, Chemicals (Chas. Cooper & Co.'s), Formulas, and
all Supplies for Photo-Engravers.

Photo-Engraving Taught
IN ALBUMEN, BITUMEN, OR THE ENAMEL PROCESS.

TRY THE NEW RUSSELL ETCHING POWDER.

Supplies in General. Send for Price List.

59 Beekman Street, New York, N. Y.
U. S. A.

* * * * *

PHOTO-GRAVURE.
PHOTO-GELATINE.
PHOTO-LITHOGRAPHY.
LITHOGRAPHY.
PHOTO-ENGRAVING.
TYPE-PRINTING.

WORKS. BROOKLYN. N.Y.

E. C. MEINECKE & CO.
ROOM 5. 63 WEST 22ND STREET.
NEW YORK.]

The favorable comments received from all sources testify to the
unrivaled results obtained by the PHOTOGRAVURE PROCESS, as worked
by our method.

In reviewing a set of photogravures of the Clifton Water Garden,
from negatives by the proprietor, Mr. S. C. Nash, the _Florists'
Exchange_, says:

"In his work he has been ably seconded by Messrs. E. C. Meinecke &
Co., of New York, the makers and printers of the plates. Without
fear of contradiction, we state there is no method of reproducing a
picture to compare with the photogravure process, except, possibly,
the expensive and tedious steel plate. For fidelity to detail,
sharpness of outline, contrast of light and shadow, breadth and
depth, and absolute fidelity to life, we choose this.

The Photogravure Process _IS THE BEST FOR_

=Book Illustrations=
=Art and Trade Catalogues=
=Calendars, Menus, Etc.=

where the most artistic results are desired. Either

=PLATES SUPPLIED=

combining the BEST WEARING QUALITIES with the most Artistic
Finish, or editions ready for the binder.

Your correspondence is solicited, and a trial order requested, which
will be executed promptly and in the best manner.

* * * * *

=AMATEURS!=

In order to get the =Best Results= You must use the

=CRAMER PLATE=

Manufactured by

=G. Cramer Dry Plate Works, St. Louis, Mo.=

=Your Dealer does not KEEP Cramer Plates, he SELLS them.=

* * * * *

=If you want to secure the best Photogravure results,=
=Then you must use the best plates, and these are=
=Wuestner's "White Label" 50 Sens. Plate.=

=WUESTNER'S=
=New Eagle Dry Plate Works.=

For Sale by all Dealers.

* * * * *

=Photogravure Worker.=

=Have you tried=
=THE ORIGINAL=

ZEISS LENS?

=NO?=

_BETTER DO SO AT ONCE._

THE SCOVILL & ADAMS CO.
HAVE THEM!

* * * * *

=ZEISS-ANASTIGMAT LENSES=

=Manufactured by=
=BAUSCH & LOMB OPTICAL CO.=

=ARE UNAPPROACHED for all Process Work, and are rapidly
displacing other forms of Lenses.=

=515-543 N. St. Paul Street, Rochester, N. Y.,=
=New York City, Corner Fulton & Nassau Sts.=

* * * * *

AN ILLUSTRATED MONTHLY MAGAZINE
DEVOTED TO THE INTERESTS OF
ARTISTIC & SCIENTIFIC PHOTOGRAPHY

THE PHOTOGRAPHIC TIMES PUBLISHING
ASSOCIATION 423 BROOME STREET NEW YORK

EDITED BY WALTER E. WOODBURY.]

Each number contains from 50 to 60 Illustrations!
besides a magnificent PHOTOGRAVURE FRONTISPIECE.

The Most "up to date" Photographic Magazine in the world.

ALL THE BEST AND LATEST IMPROVEMENTS CHRONICLED BY THE BEST WRITERS.

Reproductions of all the finest photographic work from all parts of
the world.

* * * * *

A FEW UNSOLICITED OPINIONS OF
The Photographic Times.

"It is a daisy."--Hon. A. A. ADEE.

"It is a veritable triumph of photographic literature."--J. J.
CARTER.

"One of the finest illustrated magazines received by us is THE
PHOTOGRAPHIC TIMES."--_Chenango Telegraph._

"If my opinion is of any value, I will tell you that it is far and
away ahead of anything that has ever been attempted."--H. J. AIKEN.

"You have certainly reached the very height of possibilities in a
photographic magazine."--ARTHUR J. BENTON.

"The photographic art has hitherto had no better exponent, and the
publishers of this magazine are determined to keep at the head of
the literature of their profession. The many original articles are
fully illustrated."--_The Portland Transcript._

"Be sure and continue sending it. Can't keep house without it."--J.
E. CRAIG.

"It is a beauty in every sense."--CHAS. WAGER HULL.

"The subject-matter, the number and quality of the illustrations,
the typographic work and the general appearance of THE PHOTOGRAPHIC
TIMES, monthly, are, separately and collectively, cause for hearty
congratulation. Permit me to hereby extend mine, together with
sincere wishes for your continued success."--C. D. CHENEY.

________________ 189

The Photographic Times Publishing Association,
=423 Broome Street, New York, N. Y.=

_Please send me_ =The Photographic Times=, _commencing with_
_______________ 189 , _for_ _______________ _to my address_:

_Name_, ______________________________________
_P. O._, _____________________________________
_County_, ____________________________________
_State_, _____________________________________

Subscription rates, one year, $4.00; six months, $2.00; three months,
$1.00; single copies, 35 cents.

Remit by Express, Money Order, Draft, P. O. Order, or Registered
Letter.

Subscriptions to THE PHOTOGRAPHIC TIMES received by all dealers
in photographic materials in this and foreign countries; also by
The American News Company and all its branches.

* * * * *

=The Photographic Appetite=

increases by what it feeds on. The beginner is usually content to
start with a modest outfit, but as interest grows the hunger for more
artistic results calls for better facilities so that the apparatus
must constantly be of a more improved pattern and contain all the
latest fixings, till finally the question of improvement is entirely
one of the value of the lens.

4 x 5 Size

The Empire, =$5.00=
The New Waterbury, =$15.00=
The Henry Clay 2d, =$15.00=
The Waterbury, =$25.00=
The Henry Clay, Jr. =$30.00=
The Henry Clay, =$50.00=

To suit this growing appetite we make a line of camera boxes unequaled
for workmanship and convenient appliances. We can supply any stage of
hunger, and make to order to suit any whim. Any photographic question
cheerfully answered. Send for our Catalogue.

The Scovill & Adams Co.
423 Broome Street, New York.

* * * * *

ANTHION-SCHERING
The Best Hypo Eliminator.

DIRECTIONS FOR USE.

THE SOLUTION.

Five grammes (75 grains) =Anthion= are dissolved in one litre (one
quart) of luke-warm distilled water. The solution keeps for at least
one month.

A. For Gelatine Plates.

_a._ The plate (13 x 18 centimetres--5 x 7 inches) or film, after
fixing, is allowed to drain and then washed for about five minutes
in a dish with about 600 cubic centimetres (20 fluid ounces) water;
it is then again allowed to drain.

_b._ Afterward it is laid in a second dish with 200 c.c. (7 fluid
ounces) =Anthion solution=, and again allowed to remain for five
minutes with occasional stirring.

_c._ The plate is then once more laid in 600 c.c. (20 fluid ounces)
fresh water, exactly according to direction _a_.

_d._ The operations _b_ and _c_ are repeated.

The plate is then =free from fixing soda=. (In order to determine
this, proceed as follows:)

Test.

To be certain that all the fixing soda is completely destroyed,
proceed as follows: Several c.c. (half to one teaspoonful) of the
last washing water are poured into a test-tube, and three or four
drops silver nitrate solution (1 to 20) added. A white precipitate
generally forms. If this gradually acquires a =yellow= tint, fixing
soda is still present.

In such a case operations _a_ and _b_ are to be repeated.

B. For Positive Paper Prints.

The operations are carried out as under A, but instead of one plate
five fixed copies (13 x 18 c.c.--5 x 7 inches) are taken, allowed to
drain one by one, then laid singly in water (vide _a_), afterward in
=Anthion solution= (vide _b_), then again in water (vide _c_), again
in =Anthion solution= (vide _d_), and finally in water.

=It is important that the paper prints are frequently separated in
the different baths.= If the prints stick together, the solution
does not penetrate and cannot act.

= IMPORTANT =

For large plates and prints it is not only necessary to use larger
dishes, but also more liquid, both =Anthion solution= and water. An
excess of =Anthion= or of water is decidedly useful, but less is
disadvantageous.

The above directions for washing relate to those who have no
continual flow of water at hand.

If a continual flow of water is obtainable, it is advisable to wash
the plates or prints in flowing water for a quarter of an hour, and
then dip in the =Anthion solution= and test the result as above.

Send orders to your Dealers, or to
The Scovill & Adams Co., New York.

* * * * *

When purchasing a Developer please be particular to specify
Schering's the oldest and most favorably known brand.

_Put up with labels and seals as per fac-similes here given._

THE STANDARD OF THE LAST--THIRD--EDITION OF THE GERMAN PHARMACOPOEIA.

See that you get the Genuine "Schering's." Excelled by none.

Send Orders to your Dealers, or to
THE SCOVILL & ADAMS COMPANY, NEW YORK.

<pre id="pg-footer">