_A Pocket-book for Pharmacists, Medical Pract.i.tioners, Students, etc., etc. (British, Colonial, and American)._ By THOMAS BAYLEY, a.s.soc. R.

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_The Fireman's Guide_; a Handbook on the Care of Boilers. By TEKNOLOG, foreningen T. I. Stockholm. Translated from the third edition, and revised by KARL P. DAHLSTROM, M.E. Second edition. Fcap. 8vo, cloth, 2_s._

_A Treatise on Modern Steam Engines and Boilers_, including Land Locomotive, and Marine Engines and Boilers, for the use of Students. By FREDERICK COLYER, M. Inst. C.E., Mem. Inst. M.E. _With 36 plates._ 4to, cloth, 12_s._ 6_d._

CONTENTS:

1. Introduction--2. Original Engines--3. Boilers--4. High-Pressure Beam Engines--5. Cornish Beam Engines--6. Horizontal Engines--7.

Oscillating Engines--8. Vertical High-Pressure Engines--9. Special Engines--10. Portable Engines--11. Locomotive Engines--12. Marine Engines.

_Steam Engine Management_; a Treatise on the Working and Management of Steam Boilers. By F. COLYER, M. Inst. C.E., Mem. Inst. M.E. 18mo, cloth, 2_s._

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_Liquid Fuel for Mechanical and Industrial Purposes._ Compiled by E. A.

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DRYSDALE, M.D., and J. W. HAYWARD, M.D. _With plates and woodcuts._ Third edition, with some New Sections, and the whole carefully Revised, 8vo, cloth, 7_s._ 6_d._

_Losses in Gold Amalgamation._ With Notes on the Concentration of Gold and Silver Ores. _With six plates._ By W. MCDERMOTT and P. W. DUFFIELD.

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_A Guide for the Electric Testing of Telegraph Cables._ By COL. V.

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_The Hydraulic Gold Miners' Manual._ By T. S. G. KIRKPATRICK, M.A.

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"We venture to think that this work will become a text-book on the important subject of which it treats. Until comparatively recently hydraulic mines were neglected. This was scarcely to be surprised at, seeing that their working in California was brought to an abrupt termination by the action of the farmers on the debris question, whilst their working in other parts of the world had not been attended with the antic.i.p.ated success."--_The Mining World and Engineering Record._

_The Arithmetic of Electricity._ By T. O'CONOR SLOANE. Crown 8vo, cloth, 4_s._ 6_d._

_The Turkish Bath_: Its Design and Construction for Public and Commercial Purposes. By R. O. ALLSOP, Architect. _With plans and sections._ 8vo, cloth, 6_s._

_Earthwork Slips and Subsidences upon Public Works_: Their Causes, Prevention and Reparation. Especially written to a.s.sist those engaged in the Construction or Maintenance of Railways, Docks, Ca.n.a.ls, Waterworks, River Banks, Reclamation Embankments, Drainage Works, &c., &c. By JOHN NEWMAN, a.s.soc. Mem. Inst. C.E., Author of 'Notes on Concrete,' &c. Crown 8vo, cloth, 7_s._ 6_d._

_Gas and Petroleum Engines_: A Practical Treatise on the Internal Combustion Engine. By WM. ROBINSON, M.E., Senior Demonstrator and Lecturer on Applied Mechanics, Physics, &c., City and Guilds of London College, Finsbury, a.s.soc. Mem. Inst. C.E., &c. _Numerous ill.u.s.trations._ 8vo, cloth, 14_s._

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_A Treatise on the Richards Steam-Engine Indicator and the Development and Application of Force in the Steam-Engine._ By CHARLES T. PORTER.

Fourth Edition, revised and enlarged, 8vo, cloth, 9_s._

CONTENTS.

The Nature and Use of the Indicator: The several lines on the Diagram.

Examination of Diagram No. 1.

Of Truth in the Diagram.

Description of the Richards Indicator.

Practical Directions for Applying and Taking Care of the Indicator.

Introductory Remarks.

Units.

Expansion.

Directions for ascertaining from the Diagram the Power exerted by the Engine.

To Measure from the Diagram the Quant.i.ty of Steam Consumed.

To Measure from the Diagram the Quant.i.ty of Heat Expended.

Of the Real Diagram, and how to Construct it.

Of the Conversion of Heat into Work in the Steam-engine.

Observations on the several Lines of the Diagram.

Of the Loss attending the Employment of Slow-piston Speed, and the Extent to which this is Shown by the Indicator.

Of other Applications of the Indicator.

Of the use of the Tables of the Properties of Steam in Calculating the Duty of Boilers.

Introductory.

Of the Pressure on the Crank when the Connecting-rod is conceived to be of Infinite Length.

The Modification of the Acceleration and r.e.t.a.r.dation that is occasioned by the Angular Vibration of the Connecting-rod.

Method of representing the actual pressure on the crank at every point of its revolution.

The Rotative Effect of the Pressure exerted on the Crank.

The Transmitting Parts of an Engine, considered as an Equaliser of Motion.

A Ride on a Buffer-beam (Appendix).

In demy 4to, handsomely bound in cloth, _ill.u.s.trated with 220 full page plates_, Price 15_s._

ARCHITECTURAL EXAMPLES

IN BRICK, STONE, WOOD, AND IRON.

A COMPLETE WORK ON THE DETAILS AND ARRANGEMENT OF BUILDING CONSTRUCTION AND DESIGN.

BY WILLIAM FULLERTON, ARCHITECT.

Containing 220 Plates, with numerous Drawings selected from the Architecture of Former and Present Times.