National Geographic : 1902 Mar
THE Popular Science Monthly Especially important in free public libraries. -J . S. BILLINGS, Director of the Consolidated Libraries, N. Y . City. Of great utility.- S. P. LANGLEY, Director of the Smithsonian Institution. Unique among scientific journals. - T. C . MENDENHALL, lately President of the Worcester Polytechnic Institute. The latest and best in a most attractive form.-ROB'T H. THURSTON, Director of Sibley College, Cornell University. Most valuable in keeping busy men abreast of the more important advances of science.- A. W . GREELY, General, U. S . A. The newest and best that can be said on any subject. -WILLIS L. MOORE, Chief of the U. S. Weather Bureau. It has done more for the diffusion of scientific information in this country during the past twenty-five years than any other one agency.-GEORGE M. STERNBERG, Surgeon General, U. S . A . The most instructive and most enjoyable scientific journal which I have seen anywhere, here or abroad. HUGO MUNSTERBERG, Professor of Psychology, Harvard University. I refer to it so constantly that we shall soon need a new set.-- E. A . STRONG, Professorof Physics and Chemistry, State Normal College, Ypsilanti, Mich. It has had few rivals and no equal in the educative service it has done for the American people. A complete set of the volumes thus far published is both a history ol science for the period covered and at the same time a pretty complete cyclopedia of natural science. ' here is nothing to fill its place, and to carry it on is a benefaction to the public.- -W . .1. HARRIS, U. S. Commissioner of Education. THE POPULAR SCIENCE MONTHLY will be sent to new subscribers for six months for One Dollar. Single Numbers, 30 Cents Yearly Subscription, $3.00 The Science Press. Sub-Station 84. New York BACK VOLUMES of the National Geographic Magazine Volume 1-Not complete Nos. for sale, 1 & 3, each Volume 2-Not complete None for sale Volume 3-Complete Volume 4-Not complete None for sale Volume 5-Complete Volume 6-Complete $0.90 4.80 4.20 3.90 Volume 7-Complete . Volume 8-Complete . Volume 9-Complete Volume 10-Not complete No. 6 out of print Volume 11-Complete . Volume 12-Complete NATIONAL GEOGRAPHIC MAGAZINE Corcoran Building . $3.00 . 2.75 . 2.50 . 2.30 . 2.50 . 2.50 Washington, D. C.