Youngson, P. Board of Trade Examination Calculations for First Class Engineers. 8th edn. Cr. 8vo. Pp. 447. Jas. Munro. 10s. 6d.

Board of Trade Examination Calculations for Second Class Engineers. 8th edn. Cr. 8vo. Pp. 349. Jas. Munro. 10s. 6d.

Useful Hints to Sea-Going Engineers and How to Repair and Avoid Breakdowns. 7th edn. Cr. 8vo. Pp. 460. 1921. T. Reed & Co. 7s. 6d.

-Extra Chief Engineers' and Surveyors' Guide to the Examinations of the Board of Trade. Demy 8vo. Pp. 610. 1921. Jas. Munro. 45s.

Allen, H. Gas and Oil Engines. A Treatise on the Design, Construction, and Working of Internal-combustion Engines, operated by gas from towns' mains, blast furnaces, pressure and suction producers, as well as by oil and petrol. Demy 8vo. Pp. 562. 1907. Scientific Pub. Co. 12s. 6d.

How to Design A Gas Engine, with full working drawings for a 7-B.H.P. Gas Engine. Cr. 4to. Pp. 40. 1907. Scientific Pub. Co. 2s. 6d.

Askling, C. W., and Roesler, E.
Internal Combustion Engines and
Gas Producers. Large 8vo. Pp.
313. 1912. Griffin. 158.

Bale, M. P. Gas and Oil Engine
Management. 4th edn. Cr. 8vo.
Pp. 176. 1919. Crosby Lockwood.
3s. 6d.
Butler, E. Internal Combustion
Engine: Design and Practice. 2nd
edn. Demy 8vo. Pp. 289. 1920.
Griffin. 21s.

Carburettors, Vaporisers, and
Distributing Valves used in Internal
Combustion Engines. 2nd edn.
Demy 8vo. Pp. 288. 1919. Griffin.
12s. 6d.

Chalkley, A. P. The Diesel Engine for Land and Marine Work. 4th edn. Demy 8vo. Pp. 385. 1919. Constable. 12s. 6d.

Clerk, D., and Burls, G. A. The Gas Petrol and Oil Engine. Vol 2. The Gas, Petrol and Oil Engine in Practice. New edn. 8vo. Pp. 848. (1913). 1919. Longmans. 28s. Codd, M. A. Electrical Ignition for Internal Combustion Engines. 2nd edn. Cr. 8vo. Pp. 172. 1918. Spon. 68.

Dommett, W. E. Petrol Engine Construction and Drawing. Demy 4to. Pp. 56. 1912. Arnold. 3s. 6d.

Donkin, B. A Text-Book on Gas,

Oil, and Air Engines. 5th edn. Revised by T. G. Smith; and new matter by Prof. Burstall. Large 8vo. Pp. 662. 1911. Griffin. 30s. Garrard, A. Gas, Oil, and Petrol

Engines. Including Suction Gas Plant and Humphrey Pumps. Cr. 8vo. Pp. 221. 1916. Pitman. 68. Haeder, H. A Handbook on the Gas Engine. Translated from the German and edited by W. M. Huskisson. Sm. 4to. Pp. 317. 1911. Crosby Lockwood. 30s.

Judge, A. W. Automobile and Air

craft Engines in Theory and Experiment; being a revised and enlarged edition of High Speed Internal Combustion Engines. Med. 8vo. Pp. 650. 1921. Pitman. 30s. Kean, F. J. The Petrol Engine. The Principles of Design and Construction. 2nd edn. Demy 8vo. Pp. 126. 1918. Spon. 68.

Kershaw, J. W. Elementary Internal Combustion Engines and Gas Producers. New imp. Cr. 8vo. Pp. 180. 1920. Longmans. 68. 6d. Kirschke, A. Gas and Oil Engines. Translated and Revised from the German. and adapted to British Practice. Cr. 8vo. Pp. 160. 1912. Scott, Greenwood. 4s.

Compiled by the staff of "The
Motor Ship and Motor Boat." 5th
edn. Demy 8vo. Pp. 206. 1919.
Temple Press. 2s 6d.

Marshall, W. J., and Sankey, H.

R. The Gas Engine. Ex. Cr. 8vo. Pp. 294. 1920. Constable. 12s. 6d. Martin, W. D. Marine Oil Engines: Specially for Marine Engineers who are unfamiliar with the working of Oil Engines. 2nd edn. Cr. 8vo. Pp.223. 1919. Jas. Munro.7s. 6d. Okill, J. Gas and Oil Engine Operation. Including Gas Producers and

Petrol Engines. Cr. 8vo. Pp. 198. 1919. Pitman. 6s. Pollock, W. Hot Bulb Oil Engines and Suitable Vessels. Demy 8vo. Pp. 429. 1919. Constable. 42s. Purday, H. F. P. Diesel Engine

Design. Demy 8vo. Pp. 317. 1919. Constable. 21s.

Rose, E. M. Diesel Engine Design. Demy 8vo. Pp. 203. 1919. Emmott. 7s. 6d.

Smith, C. A. Suction Gas Plants. 4th edition in preparation. Griffin. Spooner, H. J. Notes on, and Drawings of a Four-Cylinder Petrol Engine. 4to. Pp. 26. 1908. Longmans. 3s. 6d.

Supino, G. Land and Marine Diesel Engines. Translated by A. G. Bremner and J. Richardson. 4th edn. Large 8vo. Pp. 323. 1920. Griffin. 15s.

Wells, G. J., and Wallis - Tayler, A. J. Diesel or Slow Combustion Oil Engine. A Practical Treatise on their Design and Construction. 4th edn. Demy 8vo. Pp. 320. 1919. Crosby Lockwood. 10s. 6d.

Wimperis, H. E. A Primer of the

Internal Combustion Engine. A
Text-book for First and Second Year
Students. 3rd imp. Cr. 8vo. Pp.
154. 1919. Constable. 4s.

The Internal Combustion Engine.
A Text-Book on Gas, Oil, and Petrol
Engines, for the use of Students and
Engineers. 3rd edn. Demy 8vo.
Pp. 335. 1919. Constable. 8s. 6d.

xxiii. TURBINES: STEAM AND GAS.

Bauer, G., and Lasche, O. Marine Steam Turbines. Translated from the German, and edited by M. G. S. Swallow. Med. 8vo. Pp. 230. 1911. Crosby Lockwood. 12s. 6d. Davey, N. The Gas Turbine. Demy 8vo. Pp. 264. 1914. Constable.

158.

Foster, F. Steam Turbines and Turbo-Compressors. A Treatise on Construction. their Design and Demy 8vo. Pp. 466. 1906. Scientific Pub. Co. 10s. 6d.

Goudie, W. J. Steam Turbines: A Text-Book for Engineering Students. New edition in the Press. Long

mans.

Holzwarth, H. A Treatise on the Gas Turbine: Theory, Construction, and Records of the Results Obtained from Two Actual Machines. TransMed. lated by A. P. Chalkley. 8vo. Pp. 148. 1912. Griffin. 9s.

Jude, A. The Theory of the Steam Turbine. A Treatise on the Principles of Construction of the Steam Turbine, with Historical Notes on its Development. 2nd edn. Large 8vo. Pp. 440. 1910. Griffin. 218. Morrow, J. Steam Turbine Design,

with Especial Reference to the Reaction Type, and including Chapters on Condensers and Propeller Design. New edition in preparation. Arnold.

Neilson, R. M. The Steam Turbine. 4th edn. Med. 8vo. Pp.678. 1912. Longmans. 21s.

Reed, S. J. Turbines Applied to Marine Propulsion. 2nd edn. Cr. 4to. Pp. 191. 1917. Constable. 16s.

Sothern, J. W. M. The Marine Turbine. A Practical Illustrated Description of the Parsons and Curtis Marine Geared-Down Steam Turbines, etc. 6th edn. Roy. 8vo. Pp. 790. 1919. Jas. Munro. 42s. Suplee, H. H. The Gas Turbine: Progress in the Design and Construction of Turbines operated by Gases of Combustion. Large 8vo. Pp. 262. 1910. Griffin. 158. Wilda, H. Steam Turbines: Their Theory and Construction. Cr. 8vo. Pp. 200. 1912. Scott, Greenwood. 48. 6d.

Engin

A General Manager. eering Estimates. Costs, and Accounts. A Guide to Commercial Engineering. 3rd edn. 8vo. Pp. 276. 1911. Crosby Lockwood. 8s. 6d.

Brooks, G. (edited by) The Mech

anical Engineer's Price Book. 2nd edn. Pocket size. Pp. 182. 1914. Spon. 5s.

Fowler's Mechanical Engineer's Pocket Book, 1921. Edited by W. H. Fowler. 18mo. Pp. 620. Jan., 1921. Scientific Pub. Co. 3s.

Mechanic's and Machinist's Pocket Book, 1921. Edited by W. H. Fowler. 18mo. Pp. 495. Jan., 1921. Scientific Pub. Co. 2s. 6d.

Kempe, H. R., and Smith, W. H. (compiled and edited by). The Engineer's Year-Book of Formulae, Rules, Tables, Data and Memoranda for 1921. A Compendium of the Modern Practice of Civil, Mechanical, Electrical, Marine, Gas, Aero, Mine, and Metallurgical Engineering. With collaboration of Eminent Specialists. 28th year of publication. Large Cr. 8vo. Pp. 2,697. Apl. 1921. Crosby Lockwood. 30s.

Mechanical World Year Book, 1921. 18mo. Pp. 328. Jan., 1921. Emmott. 2s. 6d.

Practical Engineer Mechanical Pocket Book and Diary, 1921. 23rd year of Issue. Pocket size. Pp. 566. Feb., 1921. Technical Pub. Co. 28.

Rankine, W.J.M. Useful Rules and Tables: for Architects, Builders, Engineers, Mechanics, Shipbuilders, etc., with Appendix for the use of Electrical Engineers by A. Jamieson. 8th edn. 1907. Griffin. 10s. 6d.

Ruff, F. Reference Book for Statical Calculations. Force Diagrams for Frameworks, Tables, Instruc

i. HISTORICAL AND

GENERAL.

Bacon, G. All About Flying. Fcap. 8vo. Pp. 134. 1919. Methuen.

28.

Bailey, G. C. The Complete Airman. Demy 8vo. Pp. 280. 1920. Methuen. 168.

Bairstow, L. Progress of Aviation in the War Period. Some Items of Scientific and Technical Interest. (Wilbur Wright Lecture, 1919). Pp. 24. 1919. Royal Aeronautical Society. 2s. 6d.

Berry, W. H. Aircraft in War and Commerce. 3rd edn. 8vo. Pp. 152. 1919. Burrow. 2s. 6d. Blackburn, C. J., and Newby, E. J. All About Aircraft. A Simple Text Book. 8vo. Pp. 123. 1919. Burrow. 3s. 6d.

Bright, C. Telegraphy, Aeronautics

and War. Demy 8vo. Pp. 401. 1914. Constable. 16s.

Dargon, J. The Future of Aviation. Translated fron the French by P. Nutt. Demy 8vo. Pp. 195. 1919. Nutt. 10s. 6d.

Gill, N. J. The Aerial Arm. Its Functions and Development. 8vo. Pp. 168. 1919. Aeroplane Publishing Co. 6s. 6d.

Grahame-White, C., and Harper, H. Our First Airways: Their Organization, Equipment, and Finance. Cr. 8vo. Pp. 195. 1919. Lane. 6s. 6d.

Air-Power: Naval, Military and Commercial. Demy 8vo. Pp. 270. 1917. Chapman & Hall.

7s. 6d.

Kennedy, R. Flying Machines. Demy 8vo. Pp. 158. 1909. Technical Pub. Co. 6s. 9d.

Lanchester, F. W. Aircraft in Warfare: the Dawn of the Fourth Arm. Med. 8vo. Pp. 239. 1916. Constable. 12s. 6d.

Matthews, R. B., and Others. The British Aircraft Industry: Its Industrial and Commercial Potentialities. A Reprint from The Times, Supplement, for April, 1918. Cr. 8vo. Pp. 305. 1918. Hodder and Stoughton. 68.

Middleton, E. C. Airfare of To

day and of the Future. Cr. 8vo. Pp. 192. 1917. Constable. 3s. 6d.

Swinton, A. J. (edited by). The Aeroplane Handbook. Demy 8vo. Pp. 284. 1920. Aeroplane & General Pub. Co. 21s.

Turner, C. C. Aircraft of To-Day.. Cr. 8vo. Pp. 315. 1918. Seeley. 7s. 6d.

The Struggle in the Air 19141918. A Personal Narrative. Demy 8vo. Pp. 296. 1919. Arnold..

158.