12 CATALOGUE OF SCIENTIFIC BOOKS 



Egyptian Irrigation. By W. WILLCOCKS, M.I.C.E., 



Indian Public Works Department, Inspector of Irrigation, Egypt. With 

 Introduction by Lieut.-Col. J. C. Ross, R.E., Inspector-General of 

 Irrigation. With numerous lithographs and wood engravings, royal 8vo, 

 cloth, I/. i6s. 



Screw Cutting Tables for Engineers and Machinists, 



giving the values of the different trains of Wheels required to produce 

 Screws of any pitch, calculated by Lord Lindsay, M.P., F.R.S., F.R.A.S., 

 etc. Cloth, oblong, 2s. 



Screw Chitting Tables, for the use of Mechanical 



Engineers, showing the proper arrangement of Wheels for cutting the 

 Threads of Screws of any required pitch, with a Table for making the 

 Universal Gas-pipe Threads and Taps. By W. A. MARTIN, Engineer. 

 Second edition, oblong, cloth, is., or sewed, 6d. 



A Treatise on a Practical Method of Designing Slide- 



Valve Gears by Simple Geometrical Construction, based upon the principles 

 enunciated in Euclid's Elements, and comprising the various forms of 

 Plain Slide-Valve and Expansion Gearing ; together with Stephenson's, 

 Gooch's, and Allan's Link-Motions, as applied either to reversing or to 

 variable expansion combinations. By EDWARD J. COWLING WELCH, 

 Memb. List. Mechanical Engineers. Crown 8vo, cloth, 6s. 



Cleaning and Scouring : a Manual for Dyers, Laun- 

 dresses, and for Domestic Use. By S. CHRISTOPHER. i8mo, sewed, 6d. 



A Glossary of Terms used in Coal Mining. By 



WILLIAM STUKELEY GRESLEY, Assoc. Mem. Inst. C.E., F.G.S., Member 

 of the North of England Institute of Mining Engineers. Illustrated with 

 numerous woodcuts and diagrams, crown 8vo, cloth, 5-r. 



A Pocket-Book for Boiler Makers and Steam Users, 



comprising a variety of useful information for Employer and Workman, 

 Government Inspectors, Board of Trade Surveyors, Engineers in charge 

 of Works and Slips, Foremen of Manufactories, and the general Steam- 

 using Public. By MAURICE JOHN SEXTON. Second edition, royal 

 32mo, roan, gilt edges, 5^. 



Electrolysis: a Practical Treatise on Nickeling, 



Coppering, Gilding, Silvering, the Refining of Metals, and the treatment 

 of Ores by means of Electricity. By HIPPOLYTE FONTAINE, translated 

 from the French by J. A. BERLY, C.E., Assoc. S,T.E. With engravings. 

 8vo, cloth, qs, 



