2 WORKS ON SCIENCE AND NATURAL HISTORY — Continued. 



NEWTH, S. 



NATURAL PHILOSOPHY: an Introduction to the 



Study of Statics, Dynamics, Hydrostatics, Light, Heat, and Sound ; 

 with numerous Examples. By Samuel Newth. Small 8vo. 3^. 6d. 



PERCY, JOHN. 



METALLURGY : the Art of Extracting Metals from 



their Ores. By John Percy. With Illustrations. 8vo. 

 Fuel, Wood, Peat, Coal, &c. 30s. | Lead, and Part of Silver. 305. 

 Silver and Gold. 30s-. 



ROBERTS, R. D. 



AN INTRODUCTION TO MODERN GEOLOGY. 



By Dr. R. D. Roberts. W T ith Coloured Maps and Illustrations. 

 Crown 8vo. $s. (University Extension Series.) 



SIEMENS, SIR WM. 



THE SCIENTIFIC WORKS OF SIR WM. SIEMENS : 



a Collection of Papers and Discourses. Edited by E. F. Bamber, 

 C.E. Vol 1. Heat and Metallurgy. 2. Electricity &c. 3. Addresses 

 and Lectures. Plates. 3 vols. 8vo. 12s. each. 



SIEMENS, WERNER. 



COLLECTED WORKS OF DR. WERNER VON 



SIEMENS. Translated by E. F. Bamber. Vol. 1. Scientific Papers 

 and Addresses. 2. Applied Science. With Illustrations. 2 vols. 

 8vo. 14.?. each. 



SMILES, DR. S. 



LIFE OF A SCOTCH GEOLOGIST AND BOTANIST 



(ROBERT DICK). By S. Smiles. Illustrations. Crown 8vo. 12s. 



LIFE OF A SCOTCH NATURALIST (THOMAS 



EDWARD). By S. Smiles. Illustrations. Post 8vo. 6s. 

 SOMERVILLE, MARY. 



CONNEXION OF THE PHYSICAL SCIENCES. 



By Mary Somerville. New Edition, revised. Plates. Post 8vo. gs. 



PHYSICAL GEOGRAPHY. By Mary Somerville. 



New Edition, revised by the Rev. J. Richardson. Portrait. Post 

 8vo. gs. 



THOMSON, J. A. 



THE STUDY OF ANIMAL LIFE. By J. Arthur 



Thomson. With many Illustrations. Crown 8vo. $s. (University 

 Extension Manuals.) 



WHYMPER, E. 



HOW TO USE THE ANEROID BAROMETER. 



By Edward Whymper. With numerous Tables. 2s. 6d. net. 



JOHN MURRAY, Albemarle Street. 



