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



GEOMETRY AND EUCLID- Continued. 



LO ^.TEXT-BOOK ON PRACTICAL, SOLID, AND DE- 

 SCRIPTIVE GEOMETRY. By DAVID ALLAN Low, Professor of Engineer- 

 ing, East London Technical College. Crown 8vo. 

 Part I. With 114 Figures, 2s. Part II. With 64 Figures, 3*. 



THE DIAGRAM MEASURER. An Instrument for measuring 



the Areas of Irregular Figures and specially useful for determining the Mean 

 Effective Pressure from Indicator Diagrams from Steam, Gas and other 

 Engines. Designed by D. A. Low. With Full Instructions for Use. is. net. 



MORRIS AND HUSBAND. PRACTICAL PLANE AND 

 SOLID GEOMETRY. By I. HAMMOND MORRIS and JOSEPH HUSBAND. 

 Fully Illustrated with Drawings. Crown 8vo., 2s. 6d. 



MORRIS. GEOMETRICAL DRAWING FOR ART STU- 

 DENTS. Embracing Plane Geometry and its Applications, the Use of Scales, 

 and the Plans and Elevations of Solids as required in Section I. of Science 

 Subjects. By I. HAMMOND MORRIS. Crown 8vo. , zs. 



SMITH. ELEMENTS OF GEOMETRY. By J. HAMBLIN 



SMITH, M.A. Containing Books i to 6, and portions of Books n and 12, of 

 Euclid, with Exercises and Notes. Cr. 8vo., y. 6d. KEY, crown 8vo., 8s. 6d. 



Books i and 2, limp cloth, is. 6d., may be had separately. 



SPOONER. THE ELEMENTS OF GEOMETRICAL DRAW- 

 ING : an Elementary Text-book on Practical Plane Geometry, including an 

 Introduction to Solid Geometry. Written to include the requirements of the 

 Syllabus of the Board of Education in Geometrical Drawing and for the use of 

 Students preparing for the Military Entrance Examinations. By HENRY J. 

 SPOONER, C.E., M.Inst.M.E. Crown 8vo., y. f>d. 



WILSON. GEOMETRICAL DRAWING. For the use of 



Candidates for Army Examinations, and as an Introduction to Mechanical 

 Drawing. By W. N. WILSON, M.A. Parts I. and II. Crown 8vo., 4*. 6d. each 



WIN7ER. ELEMENTARY GEOMETRICAL DRAWING. 



By S. H. WINTER. Part I. Including Practical Plane Geometry, the Construc- 

 tion of Scales, the Use of the Sector, the Marquois Scales, and the Protractor. 

 With 3 Plates and 1000 Exercises and Examination Papers. Post 8vo., 55. 



OPTICS, PHOTOGRAPHY, ETC. 



ABNEY. A 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. r W& 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. 



GLAZEBROOK. PHYSICAL OPTICS. By R. T. GLAZE- 

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

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



VANDERPOEL.,OU5^ PROBLEMS : a Practical Manual 

 for the Lay Student of Color. By EMILY NOYES VANDRRPOEL. With 117 

 Plates in Color. Square 8vo. , 215. net. 



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. , 6s. 



