44 D. VAN NOSTRAND COMPANY'S 



TAILFER, L. Practical Treatise on the Bleaching of 



Linen and Cotton Yarn and Fabrics. With tables and diagrams. 

 Translated from the French by John Geddes Mclutosh. 8vo, cloth, 

 illustrated net, $5.00 



TEMPLETON, WM. The Practical Mechanic's Work- 

 shop Companion. Comprising a great variety of the most useful 

 rules and formulae in Mechanical Science, with numerous tables of 

 practical data and calculated results facilitating mechanical operations. 

 Revised and enlarged by W. S. Hutton. 12mo, morocco .$2.00 



TESLA, N. Experiments with Alternate Currents of 

 High Potential and High Frequency. A Lecture delivered before the 

 Institution of Electrical Engineers, London. With a portrait and 

 biographical sketch of the author. With figures and diagrams. 

 12mo, cloth, illustrated. New Edition In Press. 



THOM, CHAS., and WILLIS H. JONES. Telegraphic 



Connections: embracing Recent Methods in Quadruplex Telegraphy. 

 20 full page plates, some colored. Oblong, 8vo, cloth $1.50 



THOMAS, C. W. Paper Makers' Handbook ; a Prac- 

 tical Treatise. Illustrated In Press. 



THOMPSON, EDWARD P., M.E. How to Make In- 



ventions ; or, Inventing as a Science and an Art. A Practical Guide 

 for Inventors. Second edition. 8vo, boards $1.00 



Roentgen Rays and Phenomena of the Anode and 



Cathode. Principles, Applications and Theories. For Students, 

 Teachers, Physicians, Photographers, Electricians and others. As- 

 sisted by Louis M. Pignolet, N. D. C. Hodges, and Ludwig Gutmann, 

 E. E. With a Chapter on Generalizations, Arguments, Theories, 

 Kindred Radiations and Phenomena. By Professor Wm. Anthony. 

 50 Diagrams, 40 Half-tones. 8vo, cloth $1.50 



THORNLEY, T. Cotton Combing Machines. With 



numerous tables, engravings and diagrams. 8vo, cloth, illustrated. 



343 pages net, $3.00 



Contents. Preface, List of Illustrations; The Silver Lap Ma- 

 chine ; Ribbon Lap Machine and Draw-Frame ; General Description 

 of the Heilmann Comber ; The Cam Shaft ; The Detaching and At- 

 taching Mechanism of the Comber; The Duplex Comber; Rp-setting 

 of Combers ; The erection of a Heilmann Comber ; Stop Motions ; 

 Various Calculations ; Various Notes and Discussions ; Cotton Comb- 

 ing Machines of Continental Make ; Index. 



TODD, JOHN and W. B. WHALL. Practical Seaman- 

 ship for Use in the Merchant Service : Including all ordinary sub- 

 jects ; also Steam Seamanship, Wreck Lifting, Avoiding Collision, 

 Wire Splicing, Displacement, and everything necessary to be known 

 by seamen of the present day. Second edition, with 247 illustrations 

 and diagrams. 8vo, cloth net, $8.00 



