Chapter XVII: Book II: , with Answers 1 4

EXPLOSIVES, HISTORICAL PAPERS ON MODERN. G.
W. MacDonald 9 0

EXPLOSIVES INDUSTRY, RISE AND PROGRESS OF
THE BRITISH. 18 0

FIELD MANUAL OF SURVEY METHODS AND OPERATIONS.
A. Lovat Higgins 21 0

FIELD WORK FOR SCHOOLS. E. H. Harrison and
C. A. Hunter 2 0

FILES AND FILING. Fremont and Taylor 21 0

FITTING, PRINCIPLES OF. J. G. Horner 7 6

FIVE FIGURE LOGARITHMS. W. E. Dommett 1 6

FLAX CULTURE AND PREPARATION. F. Bradbury 10 6

FUSELAGE DESIGN. A. W. Judge 3 0

GAS, GASOLENE AND OIL ENGINES. J. B. Rathbun 8 0

GAS ENGINE TROUBLES AND INSTALLATIONS. J.
B. Rathbun 8 0

GAS AND OIL ENGINE OPERATION. J. Okill 5 0

GAS, OIL, AND PETROL ENGINES: INCLUDING
SUCTION GAS PLANT AND HUMPHREY PUMPS. A. Garrard 6 0

GAS SUPPLY IN PRINCIPLES AND PRACTICE. W.
H. Y. Webber 4 0

GEOMETRY, THE ELEMENTS OF PRACTICAL PLANE.
P. W. Scott 5 0

GEOLOGY, ELEMENTARY. A. J. Jukes-Browne 3 0

GERMAN GRAMMAR FOR SCIENCE STUDENTS. W.
A. Osborne 3 0

GRAPHIC STATICS, ELEMENTARY. J. T. Wight 5 0

HANDRAILING FOR GEOMETRICAL STAIRCASES. W.
A. Scott 2 6

HEAT, LIGHT AND SOUND. J. R. Ashworth 2 6

HIGH HEAVENS, IN THE. Sir R. Ball 10 6

HOSIERY MANUFACTURE. W. Davis 9 0

HYDRAULIC MOTORS AND TURBINES. G. R. Bodmer 15 0

ILLUMINANTS AND ILLUMINATING ENGINEERING,
MODERN. Dow and Gaster 25 0

INDICATOR HANDBOOK. C. N. Pickworth 7 6

INDUCTION COILS. G. E. Bonney 6 0

INDUCTION COIL, THEORY OF THE. E. Taylor-Jones 12 6

INSULATION OF ELECTRIC MACHINES. H. W.
Turner and H. M. Hobart 21 0

IONIC VALVE, GUIDE TO STUDY OF THE. W. D. Owen 2 6

IRONFOUNDING PRACTICAL. J. G. Horner 10 0

LEATHER WORK. C. G. Leland 5 0

LEKTRIK LIGHTING CONNECTIONS. W. Perren Maycock 1 0

LENS WORK FOR AMATEURS. H. Orford 3 6

LIGHTNING CONDUCTORS AND LIGHTNING GUARDS.
Sir O. Lodge 15 0

LOGARITHMS FOR BEGINNERS. C. N. Pickworth 1 6

MACHINE DRAWING, PREPARATORY COURSE TO.
P. W. Scott 2 0

MAGNETISM AND ELECTRICITY, AN INTRODUCTORY
COURSE OF PRACTICAL. J. R. Ashworth 3 0

MAGNETO AND ELECTRIC IGNITION. W. Hibbert 3 6

MANURING LAND, TABLES FOR MEASURING AND.
J. Cullyer 3 0

MARINE ENGINEERS, PRACTICAL ADVICE for. C.
W. Roberts 5 0

MATHEMATICAL TABLES. W. E. Dommett 4 6

MATHEMATICS, MINING (PRELIMINARY). G. W.
Stringfellow 1 6
With Answers Do. 2 0

MECHANICAL ENGINEERING DETAIL TABLES. J. P. Ross 7 6

MECHANICAL ENGINEERS’ POCKET BOOK. Whittaker’s 12 6

MECHANICAL TABLES. J. Foden 2 0

MECHANICS’ AND DRAUGHTSMEN’S POCKET BOOK.
W. E. Dommett 2 6

METAL TURNING. J. G. Horner 4 0

METAL WORK--REPOUSSÉ. C. G. Leland 5 0

METAL WORK, TEACHER’S HANDBOOK. J. S. Miller 4 0

METRIC AND BRITISH SYSTEMS OF WEIGHTS AND
MEASURES. F. M. Perkin 3 6

METRIC CONVERSION TABLES. W. E. Dommett 2 6

MILLING, MODERN. E. Pull 9 0

MINERALOGY : THE CHARACTERS OF MINERALS,
THEIR CLASSIFICATION AND DESCRIPTION. F. H.
Hatch 6 0

MOTION PICTURE OPERATION, STAGE ELECTRICS
AND ILLUSIONS. H. C. Horstmann and V. H.
Tousley 7 6

MOTOR TRUCK AND AUTOMOBILE MOTORS AND
MECHANISM. T. H. Russell 8 0

MOTOR BOATS, HYDROPLANES AND HYDROAEROPLANES.
T. H. Russell 8 0

MOVING LOADS ON RAILWAY UNDERBRIDGES. H. Bamford 5 6

NAVAL DICTIONARY, ITALIAN-ENGLISH AND
ENGLISH-ITALIAN. W. T. Davis 10 6

OPTICAL INSTRUMENTS, MODERN. H. Orford 4 0

OPTICS OF PHOTOGRAPHY AND PHOTOGRAPHIC
LENSES. J. T. Taylor 4 0

PATTERN-MAKING, PRINCIPLES OF. J. G. Horner 4 0

PIPES AND TUBES: THEIR CONSTRUCTION AND
JOINTING. P. R. Björling 6 6

PLYWOOD AND GLUE, MANUFACTURE AND USE OF,
THE. B. C. Boulton 7 6

POLYPHASE CURRENTS. A. Still 7 6

POWER WIRING DIAGRAMS. A. T. Dover 7 6

PRACTICAL ELECTRIC LIGHT FITTING. F. C. Allsop

PRACTICAL SHEET AND PLATE METAL WORK. E.
A. Atkins 10 0

QUANTITIES AND QUANTITY TAKING. W. E. Davis 6 0

RADIO-TELEGRAPHIST’S GUIDE AND LOG BOOK.
W. H. Marchant 5 6

RAILWAY TECHNICAL VOCABULARY. L. Serraillier 7 6

REINFORCED CONCRETE. W. N. Twelvetrees 21 6

REINFORCED CONCRETE BEAMS AND COLUMNS,
PRACTICAL DESIGN OF. W. N. Twelvetrees 7 6

REINFORCED CONCRETE MEMBERS, SIMPLIFIED
METHODS OF CALCULATING. W. N. Twelvetrees 5 0

REINFORCED CONCRETE, DETAIL DESIGN IN.
E. S. Andrews 6 0

ROSES AND ROSE GROWING. R. G. Kingsley 7 6

RUSSIAN WEIGHTS AND MEASURES, TABLES OF.
Redvers Elder 2 6

SAFE LOADS ON STEEL PILLARS, TABLES OF. E. S.
Andrews 6 0

SLIDE RULE. A. L. Higgins 6

SLIDE RULE. C. N. Pickworth 3 6

SOIL, SCIENCE OF THE. C. Warrell 3 6

STARRY REALMS, IN. Sir R. Ball 10 6

STEAM TURBINE THEORY AND PRACTICE. W. J.
Kearton 15 0

STEAM TURBO-ALTERNATOR, THE. L. C. Grant 15 0

STEEL WORKS ANALYSIS. J. O. Arnold and F.
Ibbotson 12 6

STORAGE BATTERY PRACTICE. R. Rankin 7 6

STRESSES IN HOOKS AND OTHER CURVED BEAMS.
E. S. Andrews 6 0

SUBMARINE VESSELS, ETC. W. E. Dommett 5 0

SURVEYING AND SURVEYING INSTRUMENTS. G. A.
T. Middleton 6 0

SURVEYING, TUTORIAL LAND AND MINE. T. Bryson 10 6

TECHNICAL DICTIONARY, INTERNATIONAL. E. Webber 15 0

TELEGRAPHY: AN EXPOSITION OF THE TELEGRAPH
SYSTEM OF THE BRITISH POST OFFICE. T. E. Herbert 18 0

TELEGRAPHY, ELEMENTARY. H. W. Pendry 7 6

TELEPHONE HANDBOOK AND GUIDE TO THE
TELEPHONIC EXCHANGE, PRACTICAL. J. Poole 15 0

TEXTILE CALCULATIONS. G. H. Whitwam 25 0

TRANSFORMERS FOR SINGLE AND MULTIPHASE
CURRENTS. G. Kapp 12 6

TRIGONOMETRY FOR ENGINEERS, PRIMER OF. W. G.
Dunkley 5 0

TRIPLANE AND THE STABLE BIPLANE. J. C. Hunsaker 3 0

TURRET LATHE TOOLS, HOW TO LAY OUT 6 0

UNION TEXTILE FABRICATION. R. Beaumont 21 0

VENTILATION, PUMPING, AND HAULAGE, THE
MATHEMATICS OF. F. Birks 5 0

VOLUMETRIC ANALYSIS. J. B. Coppock 3 6

WATER MAINS, THE LAY-OUT OF SMALL. H. H. Hellins 7 6

WATERWORKS FOR URBAN AND RURAL DISTRICTS.
H. C. Adams 15 0

WIRELESS FOR THE HOME. N. P. Hinton 2 0

WIRELESS POCKET BOOK, MARINE. W. H. Marchant 6 0

WIRELESS TELEGRAPHY AND HERTZIAN WAVES.
S. R. Bottone 3 6

WIRELESS TELEGRAPHY: A PRACTICAL HANDBOOK
FOR OPERATORS AND STUDENTS. W. H. Marchant 7 6

WOOD-BLOCK PRINTING. F. Morley Fletcher 8 6

WOODCARVING. C. G. Leland 7 6

WOODWORK, MANUAL INSTRUCTION. S. Barter 7 6

WOOL SUBSTITUTES. R. Beaumont 10 6

_Catalogue of Scientific and Technical Books post free._

* * * * *

LONDON: SIR ISAAC PITMAN & SONS, LTD
PARKER STREET. KINGSWAY, W.C.2

BEST VALUE IN THE MARKET
PANAMA
HATS

Merchants, Shippers & Wholesale Houses
REQUIRING
PANAMA HATS
Should correspond with
_GREGORY & SONS_
8 & 9, NEW ZEALAND AVENUE,
LONDON, E.C.1

who are experts in the Trade, and are
The Largest Importers in
Great Britain

* * * * *

_Telegrams_:
“GREGORIO, LONDON.”

_Codes_:
BENTLEYS,
A B C (5th Edition)
LIEBER’S

_Telephone No._:
CITY 1755

COIGNET’S
GELATINES

COIGNET No. 1
PARIS-LYON

BRANDS

COIGNET No. 2
PARIS-LYON

_Established in 1818_

Were the first to
be used for stiffening
straw hats
and are still
. . the best . .

* * * * *

_For Samples and Prices apply to_
Société des Produits Chimiques
COIGNET

PARIS: 114 Boulevard Magenta (X^e)
LONDON: 90 Fenchurch Street (E.C.3)
NEW YORK: 17 State Street

=Transcriber’s Notes=

Minor punctuation errors have been corrected.

The following typos have been corrected.

p. 18. “plaits similiar” changed to “plaits similar”.
p. 24. “Legat” changed to “Légat”.
p. 70. “of a models’” changed to “of a model’s”.
p. 78. “the headfit” changed to “the head fit”.
p. 120. “in the easist manner” changed to “in the easiest manner”.
Index “Tegal” changed to “Tégal”.