8 Scientific Works published by Longmans, Green, S^ Co. 



— ' . 1 ■ . ^ 



TYNDALL— Lessons in Electricity at the Royal Institution, 



1876-76. By John Tyndall, D.C.L. With 58 Woodcuts. Crown 

 8vo. 25. Qd. 



— Notes of a Course of Seven Lectures on Electrical 

 Phenomena and Theories, delivered at the Royal Institution. By 

 John Tyndall, D.C.L. Crown 8vo. Is. 6d. 



— Researches on Diamagnetism and Magne-Crystallic 

 Action. By John Tyndall, D.C.L. With 8 Plates and numerous 

 Illustrations. Crown 8vo. 12s. 



TELEGRAPHY. 



CULLEY— A Handbook of Practical Telegraphy. By R. S. 

 CuLLEY, M.I.C.E., late Engineer-in-Chief of Telegraphs to the Post 

 Office. With 135 Woodcuts and 17 Plates. 8vo. 16s. 



PREECB and SIVBWRIGHT— Telegraphy. By W. H. Preecb, 

 F.R.S., M.I.C.E., &c., Engineer-in-Chief and Electrician to H.M. 

 Post Office; and Sir J. Sivewright, K.C.M.G., General Manager, 

 South African Telegraphs. With 255 Woodcuts. Fcp. 8vo. Qs, 



WILLIAMS— Manual of Telegraphy. By W. Williams, Super- 

 intendent, Indian Government Telegraphs. With 93 Woodcuts. 8vo. 

 10s. U, 



MINERALOGY, METALLURGY, &c. 



BAUBRMAN — Systematic Mineralogy. By Hilary Bauerman,' 

 F.G.S. With 373 Woodcuts and Diagrams. Fcp. 8vo. 6s, 



— Descriptive Mineralogy. By Hilary Bauerman, F.G.S 



With 236 Woodcuts and Diagrams. Fcp. 8vo. i 



BLOXAM and HUNTINGTON—Metals : their Properties and 

 Treatment. By C. L. Bloxam and A. K. Huntington, Professors 

 in King's College, London. With 130 Woodcuts. Fcp. 8vo. 6s. 



GORE— The Art of Electro-Metallurgy, including all known 

 Processes of Electro-Deposition. By G. Gore, LL.D., F.R.S. With 

 56 Woodcnts. Fcp. 8vo. Qs. 



MITCHELL— A Manual of Practical Assaying. By John 

 Mitchell, F.G.S. With 201 Illustrations. 8vo. 31s. Qd. 



RUTLEY— The Study of Rocks; an Elementary Text-Book of 

 Petrology. By F. Rutley, F.G.S. With 6 Plates and 88 Woodcuts. 

 Fcp. 8vo. 4s. ^d. 



