SCIENTIFIC PUBLICATIONS. 46 



TOOTHED GEARING. A Practical Hand-Book for 



Offices and Workshops. By a Foreman Patternmaker. 184 Illustra- 

 tions. 12mo, cloth $2.25 



TRATMAST, E. E. RUSSELL. Railway Track and 



Track-Work. With over two hundred illustrations. 8vo, cloth. $3. 00 



TRAVERSE TABLE, Showing Latitude and Depart- 

 ure for each quarter degree of the quadrant, aud for distances from 1 

 to 100, to which is appended a table of Natural Sines and Tangents for 

 each five minutes of the quadrant. (Reprinted from Scribuer's Pocket 

 Table Book.) Van A'ostrand's Si-ience Series. 16mo, cloth ... .60 

 morocco $1.00 



TREVERT, EDWARD. How to build Dynamo-Electric 



Machinery, embracing Theory Designing and Construction of Dy- 

 namos and Motors. With appendices on Field Magnet and Armature 

 Winding, Management of Dynamos and Motors, and Useful Tables of 

 Wire Gauges. Illustrated. 8vo, cloth $2.50 



Electricity and its Recent Applications. A Practi- 

 cal Treatise for Students and Amateurs, with an Illustrated Dictionary 

 of Electrical Terms and Phrases. Illustrated. 12mo, cloth. .$2.00 



TUCKER, Dr. J. H. A Manual of Sugar Analysis, in- 

 cluding the Applications in General of Analytical Methods to the 

 Sugar Industry. With an Introduction on the Chemistry of Cane 

 Sugar, Dextrose, Levulose, and Milk Sugar. 8vo, cloth, illus- 

 trated $3.50 



TUMLIRZ, Dr. O. Potential and its Application to 



the Explanation of Electric Phenomena, Popularly Treated. Trans- 

 lated from the German by D. Robertson. 111. 12mo, cloth $1.26 



TUNNER, P. A. Treatise on Roll-Turning for the 



Manufacture of Iron. Translated and adapted by John B. Pearse, of 

 the Pennsylvania Steel Works, with numerous engravings, woodcuts. 

 8vo, cloth, with folio atlas of plates $10.00 



UNDERBILL, CHAS. R. The Electro-Magnet. New 

 and ri vited edition In Prcts. 



URQUHART, J. W. Electric Light Fitting. Embody- 

 ing I'rai-iii-iil Notes on Installation Management. A Hand-book lor 

 Working Electrical Engineers. With numerous illustrations. 12mo, 

 cloth. $2.00 



Electro-Plating. A Practical Hand Book on the 



Deposition of Copper, Silver, Nickel, Gold, Brass, Aluminium, Plat- 

 ininum, etc. 'third edition. 12mo $2.00 



Electrotyping ; A Practical Manual forming a New 



and Systematic Guide to the Reproduction and Multiplication of 

 Printing Surfaces, etc. 12mo $2.00 



