HOSPITALTER. The Modern Applications of Electricity. 

 Translated and enlarged by J. Maier. 2 vols., cloth, with many 

 illustrations $8.00. " 



JEANS. Lives of the Electricians, Profs. Tyndall, Wheatstone, 

 and Morse. First series. Cloth, 327 pages. . . $2.25. 



LOCK. Workshop Receipts. Third series. Devoted mainly to 

 Electrical and Metallurgical subjects. 8vo, cloth. . $2.00. 



MUXRO & JAMIESON. Electricians' Pocket-Book of Electrical 

 Rules and Tables $2.50. 



NIAUDET. Elementary Treatise on Electric Batteries.. Trans- 

 lated from the French by L. M. Fishback. 12mo, cloth, 55 

 illustrations $2.50. 



PARNELL. Action of Lightning, and the means of Defending 

 Life and Property from its Effects. 12mo, cloth, illus. $3.00. 



PROCEEDINGS NATIONAL CONFERENCE OF ELECTRI- 

 CIANS^ held at Philadelphia, Sept. 8-13, 1884, during the 

 International Electrical Exhibition. 32mo, cloth, 300 pages, 

 illustrated $0.75. 



RADAU. Wonders of Acoustics ; or, The Phenomena of Sound, 

 with an additional chapter on the Reproduction and Transmis- 

 sion of Articulate Speech. Cloth, 288 pages, 116 illustra- 

 tions $1.00. 



REPORTS of the Committee on Electrical Standards, appointed 

 by the British Association. Revised by Sir W. Thompson and 

 Prof. J. Clerk Maxwell. 8vo, cloth. . . . $3.75. 



SPANG. Treatise on Lightning Protection. 12mo, cloth, illus- 

 trated, New York. . . . . . . . $0.75. 



SWINBURNE. Practical Electrical Units Popularly Explained. 

 With numerous illustrations and remarks. IGmo, cloth. $0.60. 



WELCH. Table of Relative Weights of Copper Conductors for 

 Conveying Electrical Currents. On card 3X4^ in. $0.10. 



WIG AN. The Electrician's Pocket-Book. The English edition 

 of Hospitaller's " Formulaire Practique de 1'Electricien." Trans- 

 lated, with additions. 8vo, cloth, 318 pages, 48 illus. $2 00. 



WORMELL. Electricity in the Service of Man. A popular and 

 practical treatise on the applications of Electricity in modern 

 life. From the German of Dr. Alfred Ritter von Urbanitzky. 

 859 pages, 836 illustrations. 



Copies of any of the above books will be promptly mailed, postage prepaid, 

 to any address in the world on receipt of price. Remit by Express or Post- 

 Office Money Order, Draft, or Registered Letter, at our risk. Postal Notes 

 at risk of remitter. Address 



W.J.JOHNSTON, Publisher, 



168-177 Potter Building, - - NEW YORK. 



