PUBLISHED BY E. & F. N. SPON. 



A Pocket-Book of Useful Formula and Memoranda 



for Civil and Mechanical Engineers. By GuiLFORD L. MOLESWORTH, 

 Mem. Inst. C.E., Consulting Engineer to the Government of India for 

 State Railways. With numerous illustrations, 744 pp., Twenty-first 

 edition, revised and enlarged, 32010, roan, 6s. 



SYNOPSIS OF CONTENTS: 



Surveying, Levelling, etc. Strength and Weight of Materials Earthwork, Brickwork, 

 Masonry, Arches, etc. Struts, Columns, Beams, and Trusses Flooring, Roofing, and Roof 

 Trusses Girders, Bridges, etc. Railways and Roads Hydraulic Formulae Canals. Sewers, 

 Waterworks, Doc Irrigation and Breakwaters Gas, Ventilation, and Wanning Heat, 

 Light, Colour, and Sound Gravity : Centres, Forces, and Powers Miilwork, Teeth of 

 Wheels, Shafting, etc. Workshop Recipes Sundry Machinery Animal Power Steam and 

 the Steam Engine Water-power, Water-wheels, Turbines, etc. Wind and Windmills 

 Steam Navigation, Ship Building, Tonnage, etc. Gunnery, Projectiles, etc. Weights, 

 Measures, and Money Trigonometry, Conic Sections, and Curves Telegraphy Mensura- 

 tion Tables of Areas and Circumference, and Arcs of Circles Logarithms, Square and 

 Cube Roots, Powers Reciprocals, etc. Useful Numbers Differential and Integral Calcu- 

 lus Algebraic Signs Telegraphic Construction and Formulae. 



Spons Tables and Memoranda for Engineers; 



selected and arranged by J. T. HURST, C.E., Author of 'Architectural 

 Surveyors' Handbook/ ' Hurst's Tredgold's Carpentry, ' etc. Fifth edition, 

 641110, roan, gilt edges, is. ; or in cloth case, is. 6d. 



^ This work is printed in a pearl type, and is so small, measuring only 2 in. by if in. by 

 i in. thick, that it may be easily carried in the waistcoat pocket. 



" It is certainly an extremely rare thing for a reviewer to be called upon to notice a volume 

 measuring but 2$ in. by if in., yet these dimensions faithfully represent the size of the handy 

 little book before us. The volume which contains 118 printed pages, besides a few blank 

 pages for memoranda is, in fact, a true pocket-book, adapted for being carried in the waist- 

 coat pocket, and containing a far greater amount and variety of information than most people 



would imagine could be compressed into so small a space The little volume has been 



compiled with considerable care and judgment, and we can cordially recommend it to our 

 readers as a useful little pocket companion." Engineering. 



Analysis, Technical Valuation, Purification and Use 



of Coal Gas. By the Rev. W. R. BOWDITCH, M.A. With wood engravings, 

 8vo, cloth, I2s. 6d. 



A Practical Treatise on Natural and Artificial 



Concrete, its Varieties and Constructive Adaptations. By HENRY REID, 

 Author of the ' Science and Art of the Manufacture of Portland Cement.' 

 New Edition, -with 59 woodcuts and $ plates, 8vo, cloth, 15^. 



Hydrodynamics : Treatise relative to the Testing of 



Water-Wheels and Machinery, with various other matters pertaining to 

 Hydrodynamics. By JAMES EMERSON. With, numerous illustrations, 

 360 pp. Third edition, crown 8vo, cloth, qs. 6d. 



Electricity as a Motive Power. By Count TH. Du 



MONCEL, Membre de PInstitut de France, and FRANK GERALDY, Inge- 

 nieur des Fonts et Chausees. Translated and Edited, with Additions, by 

 C. J. WHARTON, Assoc. Soc. Tel. Eng. and Elec. With 113 engravings 

 and diagrams, crown 8vo, cloth, 7-r. 6</. 



