D. VAN NOSTRAND COMPANY'S SHORT TITLE CATALOG 27 



Wabner, R. Ventilation in Mines. Trans, by C. Salter 8vo, *4 50 



Wade, E. J. Secondary Batteries 8vo, *4 oo 



Wadmore, T. M. Elementary Chemical Theory i2mo, *i 50 



Wadsworth, C. Primary Battery Ignition I2mo (In Press.) 



Wagner, E. Preserving Fruits, Vegetables, and Meat i2mo, *2 50 



Waldram, P. J. Principles of Structural Mechanics (In Press.) 



Walker, F. Aerial Navigation 8vo, 2 oo 



Dynamo Building. (Science Series No. 98.) i6mo, o 50 



Electric Lighting for Marine Engineers 8vo, 2 oo 



Walker, S. F. Steam Boilers, Engines and Turbines 8vo, 3 oo 



Refrigeration, Heating and Ventilation on Shipboard i2mo, *2 oo 



Electricity in Mining 8vo, *3 50 



Walker, W. H. Screw Propulsion 8vo, o 75 



Wallis-Tayler, A. J. Bearings and Lubrication 8vo, *i 50 



Aerial or Wire Ropeways 8vo, *3 oo 



Modern Cycles 8vo, 4 oo 



Motor Cars 8vo, i 80 



Motor Vehicles for Business Purposes 8vo, 3 50 



Pocket Book of Refrigeration and Ice Making 12 mo, i 50 



Refrigeration, Cold Storage and Ice-Making 8vo, *4 50 



Sugar Machinery I2mo, *2 oo 



Wanklyn, J. A. Water Analysis i2mo, 2 oo 



Wansbrough, W. D. The A B C of the Differential Calculus i2mo, *i 50 



Slide Valves I2mo, *2 oo 



Ward, J. H. Steam for the Million 8vo, i oo 



Waring, Jr., G. E. Sanitary Conditions. (Science Series No. 31.)- . i6mo, o 50 



Sewerage and Land Drainage *6 oo 



Waring, Jr., G. E. Modern Methods of Sewage Disposal i2mo, 2 oo 



How to Drain a House i2mo, i 25 



Warren, F. D. Handbook on Reinforced Concrete i2mo, *2 50 



Watkins, A. Photography. (Westminster Series.) 8vo, *2 oo 



Watson, E. P. Small Engines and Boilers i2mo, i 25 



Watt, A. Electro-plating and Electro-refining of Metals 8vo, *4 50 



Electro-metallurgy i2mo, i oo 



The Art of Soap-making. 8vo, 3 oo 



Leather Manufacture 8vo, *4 oo 



Paper-Making 8vo, 3 oo 



Weale, J. Dictionary of Terms Used in Architecture i2mo, 2 50 



Weale's Scientific and Technical Series. (Complete list sent on applica- 

 tion.) 



Weather and Weather Instruments i2mo, i oo 



paper, o 50 



Webb, H. L. Guide to the Testing of Insulated Wires and Cables. . i2mo, i oo 



Webber, W. H. Y. Town Gas. (Westminster Series.) 8vo, *2 oo 



Weisbach, J. A Manual of Theoretical Mechanics 8vo, *6 oo 



sheep, *7 50 



Weisbach, J., and Herrmann, G. Mechanics of Air Machinery 8vo, *3 75 



Welch, W. Correct Lettering (In Press.) 



Weston, E. B. Loss of Head Due to Friction of Water in Pipes . . .i2mo, *i 50 



Weymouth, F. M. Drum Armatures and Commutators 8vo, *3 oo 



Wheatley, O. Ornamental Cement Work (In Press.) 



