D. VAN NOSTRAND COMPANY'S SHORT-TITLE CATALOG 25 



Robinson, S. W. Practical Treatise on the Teeth of Wheels. 



(Science Series.). i6mo, o 50 



Roebling, J. A. Long and Short Span Railway Bridges . . folio, 25 oo 



Rogers, A. A Laboratory Guide of Industrial Chemistry. . i2mo, *i 50 



Rogers, A., and Aubert, A. B. Industrial Chemistry . (In Press.) 



Rollins, W. Notes on X-Light 8vo, *7 50 



Rose, J. The Pattern-makers^ Assistant 8vo, 2 50 



Key to Engines and Engine-running i2mo, 2 50 



Rose, T. K. The Precious Metals. (Westminster Series.). 



8vo, *2 oo 



Rosenhain, W. Glass Manufacture. (Westminster Series.) . .8vo, *2 oo 

 Rossiter, J. T. Steam Engines. (Westminster Series.) 



8vo (In Press.) 



Pumps and Pumping Machinery. (Westminster Series.) 



8vo (In Press.) 



Roth. Physical Chemistry 8vo, *2 oo 



Rouillion, L. The Economics of Manual Training 8vo, 2 oo 



Rowan, F. J. Practical Physics of the Modern Steam-boiler 



8vo, 7 50 



Roxburgh, W. General Foundry Practice 8vo, *3 50 



Ruhmer, E. Wireless Telephony. Trans, by J. Erskine- 



Murray 8vo, *3 50 



Russell, A. Theory of Electric Cables and Networks 8vo, *3 oo 



Sabine, R. History and Progress of the Electric Telegraph. i2mo, i 25 



Saeltzer, A. Treatise on Acoustics i2mo, i oo 



Salomons, D. Electric Light Installations. i2mo. 



Vol. I. The Management of Accumulators 2 50 



Vol. II. Apparatus 2 25 



Vol. III. Applications i 50 



Sanford, P. G. Nitro-explosives 8vo, *4 oo 



Saunders, C. H. Handbook of Practical Mechanics i6mo, i oo 



leather, i 25 



Saunnier, C. Watchmaker's Handbook i2mo, 3 oo 



Sayers, H. M. Brakes for Tram Cars 8vo, *i 25 



Scheele, C. W. Chemical Essays . ^ 8vo, *2 oo 



Schellen, H. Magneto-electric and Dynamo -electric Machines 



8vo, 5 oo 



Scherer, R. Casein. Trans, by C. Salter. 8vo ? * op 



