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A Manual of Mechanics; an Elementary Text-Book, designed for Students of Applied 



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 Lessons in Elementary Dynamics. Arranged by H. G. Madau, M. A., assistant master 



in Eton College. 12mo. pp.180. Edinburgh, 1886. (W. & R. Chambers.) 

 Theorio der Kraftmaschinen. F. Grashof. Lief. L Bvo. pp. 160. Leipzig, 1886. 



(Voss.) 

 Statics and Dynamics for Engineering Students. J. P. Church. Bvo. pp. iv, 396. 



New York, 1886. (Scribner. ) 

 Lectures on Heat, Sound, and Light. Richard Wormell, D. Sc, M. A. London, 1886. 



(Thomas Murby. ) 

 Acoustics, Light, and Heat. William Lees, M. A. New and enlarged edition. Lon- 

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 Le m^canisme des osselets de I'oreille et de la membrane du tympau. H. von Helm- 



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 The Phenomena and Laws of Heat. A. Cazin. (Translated by Elihu Rich.) New 



edition. l*2mo. pp. xii, 273. New York, 1885. (Scribner.) 

 Thermoche.nische Uutersuchuugeu. Julius Thomse. Baud iv, Organische Verbiu- 



dungeu. 8vo. pp. svi, 429. Leipzig, 1886. (Barth.) 

 Die Bewegung der Wiirme in den Cyliuderwandungen der Dampfmaschine. Dr. 



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 Physico-chemical Constants. Melting and boiling point tables. T. Carnelley. Vol. 



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 Spectrum Analysis. Sir Henry E. Roscoe, F. R. S. (Fourth edition, revised and con- 

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pp. xvi, 452. London, 1886 (Macmillan.) 

 Field's Chromatography ; a Treatise on Colors and Pigments for the use of Artists. 



(Modernized by J. Scott Taylor, B. A.) London, 1885. (Windsor & Newton.) 

 The Artist's Manual of Pigments. H. C. Standage. London, 1886. (Crosby, Lock- 

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 An Elementary Treatise on Geometrical Optics. W. Steadman Aldis, M. A. Loudon, 



1886. (Deighton, Bell & Co.) 

 Ilandbuch der physiologischen Optik. H. von Helmholtz. 2te Aufl., Lief. i. 8vo. 



pp. 80. Leipzig, 1886. (Voss.) 

 Das polarisirte Licht als Erkeunuugs-Mittel fiir die Erregnugs-Zustande derNerven 



der Kopfhaut. J. Pohl-Pincus. 8vo. pp. 53. Berlin, 18:56. (Grosser.) 

 Electro-deposition of Gold, Silver, Copper, Nickel, etc. A. Watt. Loudon, 1886. 



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 Electricity Treated Experimentally. Linnaeus Cumniing, M. A. London, 1886. 



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 Frictional Electricity. Thomas P. Treglohan. London, 18~'6. (Lougmans, Green & 



Co.) 

 Electric Transmission of Energy. Gisbert Kapp, C. E. London, 1886. (Whittaker 



& Co.) 

 Arc and Glow Lamps ; a practical hand-book on electric lighting. Julius Maier, 



Ph. D. London, 1886. (Whittaker & Co. and G. Bell »fe Sons.) 

 Electric Lighting for Railway Trains. W. Stroudley. (Edited by James Forrest.) 



r2mo. pp. 6. London, 1885. (Proc. Inst. Civ. Eng.) 

 Die dynamo-electrische Maschine. O. Froelich. 8v-o. pp. x, 230. Berlin, 1886. 



(Springer.) 

 Memoria acerca de la primera exposici6n interuacional de electricidad celebrada en 



Enropa. R. Roig y Torres. 8vo. pp. xii, 64. Barcelona, 1885. (La casa pro- 

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 Sur les progrfes de la science ^lectrique et les noiivelles machines d'iudnction. J. 



Boulenger. 8vo. pp. ii, 178. Paris, 1885. (Ganthier-Villars.) 

 The Present Condition of Electric Lighting. N, II. Schilling. Bvo, pp. 55, Boston, 



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