National Geographic : 1900 May
NATIONAL GEOGRAPHIC MAGAZINE COMMENCED JANUARY, 1888. TWO VOLUMES PER YEAR. THE AMERICAN GEOLOGIST, 1900. The Oldest Exclusively Geological Magazine Published in America TEE IVIS. To Subscribers in the United States, Canada and Mexico................ $3.50 a year To other Subscribers in the Postal Union............................... 4.00 a year The AMERICAN GEOLOGIST is issued monthly from the office of publication at Minne apolis, Minnesota, United States of America. Twenty four volumes are completed; the twenty-fifth began with the number for January, 1900. The magazine has received a cordial welcome and a generous support from leading geologists everywhere and it is now recognized as the exponent of the rapid geological progress that is taking place on the continent of North America, including Canada, the United States and Mexico. No where else in the world are geologic phenomena exhibited on a more extensive scale and nowhere else are results attained of greater economic and scientific importance. The AMERICAN GEOLOGIST lays before its readers from month to month the latest results of geological work. In addition to the longer papers it gives synopses of recent geological publications and brief notes on current geological events. THE GEOLOGICAL PUBLISHING CO., MINNEAPOLIS, MINN. SEND TO THE----- MACMILLAN COMPANY For the LATEST TEXT-BOOKS and WORKS OF REFERENCE ON EVERY BRANCH OF SCIENCE BY LEADING AUTHORS. PROF. L . H. BAILEY (Cornell University), works on Agricultureand Botany PROF. THORP (Mass. Inst. Tech.), on Indus trial Chemistry. $3.50 net. PROF.PACKARD (Brown Univ.), on Entomology. $4.50 net. PROFS. HARKNESS AND MORLEY (Bryn Mawr and Haverford), Theory of Analytic Functions. $3.00 net. PROF. DAVENPORT (Harvard University). Experimental Morphology. Vol. I, $2.60; Vol. II, $2.oo. PROF. HENRY F. OSBORN (Columbia Univ.)' Editor of the Columbia BiologicalSeries. These are a few only of the names Announcement List (sent free). PROF. NICHOLS AND HIS COLLEAGUES (De partment of Physics,Cornell Univ.), in Physics, Electricity,etc. PROF. LAMBERT (Lehigh University), on Dif ferentialand Integral Calculus. $1.50 net. PROF. LACHMAN (Univ. of Oregon), The Spirit of Organic Chemistry. $1.50 net. PROF. TARR (Cornell Univ.), Physical Geogra phy, Geology, etc. PROF. COMEY (Tufts College), Dictionary ot Chemical Solubtlities. represented in the Catalogue or the New THE MACMILLAN COMPANY, Publishers, NEW YORK. Please mention this Magazine when writing to advertises.