**F 212.2 Society for the Diffusion of Useful Knowledge. Library of useful knowledge. Natural philosophy. (Continued, 1.)
terms made use of in this volume. — Index, by David Booth. 2. Popular introductions to natural philosophy, by J. H. Marcet. — A popular ac- count of Newton’s optics, by D. Lardner. — Optical instruments, by A. Pritchard. — The thermometer and pyrometer, by T. S. Traill. — Elec- tricity, Galvanism, Magnetism, Electro-Magnetism, by P. M. Roget. — Explanation of scientific terms made use of in this volume. — General index. 3. Astronomy, by B. H. Malkin. — History of astronomy, by R. W. Rothman. — Mathematical geography, by E. Lloyd. — Physical ge-
{\Contiaued or the next card.
This card was printed at the Boston
Mo7o02
Public Library, October 10, 1924.