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 Formulæ--Canals, Sewers, Waterworks, Docks--Irrigation and Breakwaters--Gas, Ventilation, and Warming--Heat, Light, Colour, and Sound--Gravity: Centres, Forces, and Powers--Mill-work, 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--Mensuration--Tables of Areas and Circumference, and Arcs of Circles--Logarithms, Square and Cube Roots, Powers--Reciprocals, etc.--Useful Numbers--Differential and Integral Calculus--Algebraic Signs--Telegraphic Construction and Formulæ. “Most of our readers are already acquainted with Molesworth’s Pocket-book, and not a few, we imagine, are indebted to it for valuable information, or for refreshers of the memory. The book has been re-arranged, the supplemental formulæ and tables added since the first issue having now been incorporated with the body of the book in their proper positions, the whole making a handy size for the pocket. Every care has been taken to ensure correctness, both clerically and typographically, and the book is an indispensable _vade-mecum_ for the mechanic and the professional man.”--_English Mechanic._ * * * * * _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. 64mo, roan, gilt edges, third edition, revised and improved, 1_s._ Or in cloth case, 1_s._ 6_d._ This work is printed in a pearl type, and is so small, measuring only 2½ in. by 1¾ in. by ¼ 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 2½ in. by 1¾ 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 waistcoat 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._ * * * * *