Torpedo Warfare.

Instructions for the Management of Harvey's Sea
Torpedo, illustrated with plates and numerous wood
engravings, 8vo, cloth

Tobacco.

Tobacco, its History and Associations, including an
Account of the Plant and its Manufacture, with its
mode of use in all ages and countries, by F. W. Fair-
holt, 100 engravings, post 8vo, cloth

Tonnage Tables.

Tonnage Table of Ships and Steamers according to
Builders' Measurement, by Andrew Glendinning, 12mo,
cloth

Topographical Drawing.

A Manual of Topographical Drawing, by Lieut. R. S.
Smith, numerous folding plates, 8vo, cloth

Trevithick.

The Life of Richard Trevithick (Inventor of the
High-pressure Steam-engine), with an account of his
Inventions, by Francis Trevithick, C.E., 2 vols., medium
8vo, cloth, illustrated by a steel portrait, lithographs,
and numerous beautiful wood engravings, including
many accurate illustrations of Cornwall, its Mines,
and Mining Machinery, reduced to

Turbine.

A Practical Treatise on the Construction of Horizontal
and Vertical Waterwheels, with 11 plates, specially
designed for the use of operative mechanics, by William
Cullen, Millwright and Engineer, second edition, re-
vised and enlarged, small 4to, cloth

CONTENTS:

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Motives and objects of the Author, remarks on turbines generally, the turbines of M. Poncelet, Professor Thomson, M. Fontain, M. Jonval, at St. Maur Flour-Mill, Messieurs Callon's improvements on turbines, M. Fourneyron's first turbine, with Morin's opinion on the same, Fourneyron on curves, turbines over vertical waterwheels. St. Blazien turbine curves constructed, turbine getting the water from the under side, design for a turbine having no sluice, proportions for turbine, examples to delineate turbines, designs for supporting turbine shafts, table of square and cube roots to abridge calculation, to ascertain the velocity of water in rivers, table of surface and mean velocities, of water (with examples), tables of the discharge of water through sluices, vertical waterwheels, tables of undershot waterwheels, depth of shrouding, diameter of spur-wheels, strength of cast-iron teeth, common and improved breast-wheels, overshot waterwheels, form of wood buckets, explanation of tables, etc.

Turning.

The Practice of Hand-turning in Wood, Ivory, Shell,
etc., with Instructions for Turning such work in Metal
as may be required in the Practice of Turning in.
Wood, Ivory, etc., also an Appendix on Ornamental
Turning, by Francis Campin, second edition, with
wood engravings, crown 8vo, cloth (a book for be-
ginners)

CONTENTS:

60

On lathes, turning tools, turning wood, drilling, screw-cutting, miscellaneous apparatus and processes, turning particular forms, staining, polishing, spinning metals, materials, ornamental turning, etc.

Turning.

Specimens of Fancy Turning, executed on the hand
or foot lathe, with geometric, oval, and eccentric
chucks, and elliptical cutting frame, by an Amateur,
illustrated by 30 exquisite photographs, small 4to, cloth

Turning.

A Manual of the Hand-Lathe, comprising concise
Directions for working all kinds of Metals, Ivory,
Bone, and Precious Woods, dyeing, colouring, and
French polishing, inlaying by Veneers, and various
methods practised to produce elaborate work with
despatch, and at small expense, etc., by E. P. Watson,
illustrated by 78 engravings, post 8vo, cloth

Turning.

Specimens in Eccentric Circular Turning, with Prac-
tical Instructions for producing corresponding pieces
in the art, by J. H. Ibbetson, plates, 8vo, cloth

Ventilation.

Health and Comfort in House Building, or Ventila-
tion with Warm Air by Self-Acting Suction Power,
with Review of the mode of Calculating the Draught
in Hot-Air Flues, and with some actual Experiments,
by J. Drysdale, M.D., and J. W. Hayward, M.D.,
demy 8vo, with plates, cloth

Ventilation.

Ventilation of Buildings, by W. F. Butler, cuts, 8vo,
sewed

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Valve-Gears.

Treatise on Valve-Gears, with special consideration of
the Link-Motions of Locomotive Engines, by Dr.
Gustav Zeuner, third edition, revised and enlarged,
translated from the German, with the special permis-
sion of the author, by Moritz Müller, plates, 8vo, cloth

CONTENTS:

First Part.-Valve-Gears with One Slide Valve.

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First Division.-Simple Valve-Gear with Fixed Expansion. CHAP. I.-Description of the simple Valve-Gear with Hollowed Slide Valve. Theory of the Valve-Motion in the simple Slide Valve Gear. Practical Application of the Diagram. Solutions of a few Problems. Practical Notes on the designing of Valve-Gears.

CHAP. II. On the "Missing Quantity" in the Formula of the simple Valve-
Motion. Representation of the Distribution of the Steam by means of
Valve-Ellipses. The Diagram by Reuleaux. The Diagram by Muller.
Second Division.-Reversing Motion with Variable Expansion. (Link-
Motions.)
CHAP. I.-Link-Motion by Stephenson. Description of the Link-Motion.
Theory of Stephenson's Link-Motion :-
:-a. Determination of the Travel
of the Slide-Valve; b. On the Curve of Centres; c. On the Suspension
of the Link. Practical Application of the Diagram. On the "Missing
Quantity."

CHAP. II.-Link-Motion by Gooch. Description of the Valve-Motion.
Theory of the Link-Motion by Gooch :-a. Determination of the Travel
of the Valve; b. On the Curve of Centres; c. On the Suspension of the
Link and of the Radius-rod. Practical Application of the Diagram.
CHAP. III.-Link-Motion by Allan. Description of the Link-Motion.
Theory of Allan's Link-Motion :-a. Determination of the Travel of the
Valve; b. On the Curve of Centres; c. On the Suspension of the Link
and of the Radius-rod. Practical Application of the Diagram.
CHAP. IV.-Link-Motion by Heusinger von Waldegg. Description of the
Link-Motion. Theory of Heusinger von Waldegg's Link-Motion :-a.
Determination of the Travel of the Valve; b. On the Curve of Centres.
Practical Application of the Diagram.

CHAP. V.-Link-Motion by Pius Fink. Description of the Link-Motion.
Theory of Fink's Link-Motion: a. Determination of the Travel of the
Valve; b. On the Curve of Centres; c. On the Suspension of the Link
and of the Radius-rod. Practical Application of the Diagram.
APPENDIX TO FIRST PART.-On the Counter-effect of the Steam in Engines
with Reversing Gear.

Second Part.-Valve-Motions with Two Valves.

CHAP. I.—Valve-Motion by Gonzenbach. Description of the Valve-Motion. Theory and Application of the Diagram.

CHAP. II.-Valve-Motion by Meyer.

Description of the Valve-Motion.

Theory and Application of the Diagram.

CHAP. III.-Valve-Motion by Polonceau. Description of the Valve-Motion.

Theory and Application of the Diagram.

WORKS ON LINK-MOTIONS.

Vocabulary of Technical Terms

Used in the Design, Manufacture, and Commerce of
Iron Structures, English, French, German, Italian, and
Spanish, by Ewing Matheson, 8vo, sewed

Wage Table.

War.

Delany and Oke's Wage Table for Engineers, Ship-
Builders, Contractors, Builders, etc., from one quarter
of an hour in regular progression to nine and three-
quarter hours, from one day to ten days, at one shilling
to eight shillings a day, on a sheet

The Art of War, by Baron de Jomini, General and
Aide-de-Camp of the Emperor of Russia, a new edition,
with Appendices and Maps, Translated from the
French by Capt. G. H. Mendell, Corps of Topogra-
phical Engineers, U.S. Army, 12m0, cloth

Watchwork.

Treatise on Watchwork, Past and Present, by the Rev.
H. L. Nelthropp, M.A., F.S.A., numerous illustra-
tions, crown 8vo, cloth

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CONTENTS:

Definitions of words and terms used in watchwork. Tools. Time. Historical summary. On calculations of the numbers for wheels and pinions, their proportional sizes, trains, etc. Of dial-wheels, or motion-work. Length of time of going without winding-up. The Verge. The Horizontal. The Duplex. The Lever. The Chronometer. Repeating Watches. Keyless Watches. The Pendulum, or Spiral Spring. Compensation. Jewelling of pivot-holes. Clerkenwell. Fallacies of the Trade. Incapacity of Workmen. How to choose and use a Watch, etc.

Water Supply.

Report on the Filtration of River Waters for the Supply
of Cities, as practised in Europe, made to the Board
of Water Commissioners of the City of St. Louis, by
James P. Kirkwood, C.E., illustrated with 30 plates,
royal 4to, cloth

Water Supply.

£3 13 6

Facts and Fallacies, discussed in a Series of Letters,
written for, and published in the 'Courier' Newspaper,
between Nov. 1866, and April, 1867, chiefly with
reference to Constant Service, and a Future Source of
Supply, by John Taylor, C.E., 8vo, sewed

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Water Supply.

The Liverpool Waterworks, by Charles M. Beloe, M. Inst.
C.E., Author of the 'Construction of Catch-Water
Reservoirs,' third edition, 8vo, sewed

Water Supply.

The present Practice of Sinking and Boring Wells, with
Geological Considerations and Examples of Wells,
by Ernest Spon, Member of the Society of Engineers,
of the Franklin Institute, of the Iron and Steel Institute,
and of the Geologists' Association, crown 8vo, cloth,
illustrated by 276 diagrams and engravings to scale

Water Supply.

The Storage of Water, by J. Bailey Denton, Mem.
Inst. C.E., F.G.S.

Weight of Iron.

Tabulated Weights of Angle, T, Bulb, and Flat Iron, for
the use of Naval Architects and Ship-builders, by Charles
H. Jordan, M.I.N.A., 18mo, sewed, second edition

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"Although this little ready calculator has been professedly compiled for the use of naval architects and ship-builders, and contains in a cleverly compressed form much that cannot fail to be appreciated by them both as regards the saving of time in preparing elaborate estimates and the insuring of correctness of results, it must not be supposed that these branches are the only ones in which the information it affords will be welcomed. The numerous tables give at a single reference the weight per foot of nearly every imaginable size and shape of iron, and it needs no argument of ours to convince any of those who are engaged in constructive ironwork of the great value of so handy and reliable a little key to their calculations. Its price is not equal to a tithe of the labour of a single computation."-The Ironmonger's Journal.

Water-Tube Boilers.

A Paper on Water-Tube Boilers, read before the Society
of Engineers, by Vaughan Pendred, plates, 8vo, sewed

Wood-working Factories.

On the Arrangement, Care, and Operation of Wood-
working Factories and Machinery, forming a complete
Operator's Handbook, by J. Richards, Mechanical
Engineer, woodcuts, crown 8vo, cloth

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