BLACKIE & SON'S SCIENTIFIC, TECHNICAL & MATHEMATICAL BOOKS GENERAL PHYSICS Deschanel ELEMENTARY TREATISE ON NATURAL PHILOSOPHY. Based on the Traitt de Physique of A. PRIVAT DESCHANEL, formerly Professor of Physics in the Lycee Louis-le-Grand, Inspector of the Academy of Paris. By J. D. EVERETT, M.A., D.C.L., F.R.S., Emeritus Professor of Natural Philosophy in the Queen's College, Belfast. New and cheap Edition. Fully illustrated. Demy 8vo, cloth, 7.r. 6d. net. Draper A COURSE OF PHYSICS. PRACTICAL AND THEORETICAL. By CHARLES H. DRAPER, B.A., D.SC. ^s. 6d. Endecott A SCHOOL COURSE IN PHYSICS. LIGHT AND SOUND. By F. C. ENDE- COTT, Science Master, Kelsick Grammar School, Ambleside. A Notebook, Exercise Book, and Textbook in one. With or without Answers. 2s. 6d. Heller- ELEMENTARY EXPERIMENTAL SCIENCE. An Introduction to the Study of Scientific Method. By W. MAYHOWE HELLER, B.SC., Inspector and Head Organizer of Science Instruction to the Commissioners of National Education (Ireland) ; and EDWIN G. INGOLD, Assistant Organizer of Elementary Science for Elementary Schools. 2s. 6d. net. Kerr and Brown A THREE YEARS' COURSE OF ELEMENTARY PHYSICS. PRACTICAL AND THEORETICAL. Edited by JOHN G. KERR, M.A., LL.D., Headmaster of Allan Glen's School, Glasgow. In three Volumes. Illustrated: FIRST YEAR'S COURSE. By JOHN G. KERR, M.A., LL.D. u. 6d. SECOND YEAR'S COURSE. By JOHN G. KERR, M.A., LL.D., and JOHN N. BROWN, A.R.C.S. 2s. THIRD YEAR'S COURSE. By JOHN N. BROWN, A.R.C.S. 2s. Timpany THE ARITHMETIC OF ELEMENTARY PHYSICS AND CHEMISTRY. By H. M. TIMPANY, M.SC., Headmaster, Elementary and Intermediate Technical Schools, Brighton, 1s. [477]