12 Scientific Works published by Longmans , Green, 6 Co. 



TRIGONOMETRY, 



CASEY. A TREATISE ON ELEMENTARY TRIGONO- 



METRY. By JOHN CASEY, LL. D. , F. R. S. , late Fellow of the Royal University 

 of Ireland. With numerous Examples and Questions for Examination. i2mo, 



CLARKE. PLANE TRIGONOMETRY. Containing the more 

 advanced Propositions, Solution of Problems and a complete Summary of For- 

 mulae, Bookwork, etc. , together with recent Examination Papers for the Army, 

 Woolwich, etc. With Answers. By the Rev. A. DAWSON CLARKE, M.A., St. 

 John's College, Cambridge. Crown 8vo., 5^. 



GOODWIN. Works by H. B. GOODWIN, M.A. 

 PLANE AND SPHERICAL TRIGONOMETRY. In Three 



Parts, comprising those portions of the subjects, theoretical and practical, 

 which are required in the Final Examination for Rank of Lieutenant at 

 Greenwich. 8vo. , Ss. 6d. 



ELEMENTARY PLANE TRIGONOMETRY. With numerous 



Examples and Examination Papers set at the Royal Naval College in recent 

 years. With Answers. 8vo., 55. 



SMITH. ELEMENTARY TRIGONOMETRY. By J. HAMBLIN 



SMITH, M.A. Crown 8vo., 4^. 6d. Key, js. 6d. 



OPTICS AND PHOTOGRAPHY. 



ABNEY.k TREATISE ON PHOTOGRAPHY. By Sir WILLIAM 



DE WIVELESLIE ABNEY, K.C.B., F.R.S., Principal Assistant Secretary of the 

 Secondary Department of the Board of Education. ' With 134 Illustrations. 

 Fcp. 8vo., 55. 



DRUDE. THE THEORY OF OPTICS. By PAUL DRUDE, 



Professor of Physics at the University of Giessen. Translated from the German 

 by C. RIBORG MANN and ROBERT A. MILLIKAN, Assistant Professors of 

 Physics at the University of Chicago. With no Diagrams. 8vo., 15^. net. 



OPTICS. By R. T. GLAZE- 

 BROOK, M.A., F.R.S., Principal of University College, Liverpool. With 183 

 Woodcuts of Apparatus, etc. Fcp. 8vo. , 6.?. 



WRIGHT. OPTICAL PROJECTION : a Treatise on the Use 



of the Lantern in Exhibition and Scientific Demonstration. By LEWIS WRIGHT, 

 Author of ' Light : a Course of Experimental Optics '. With 232 Illustrations. 

 Crown 8vo. , 65. 



