OF THE Anal. p. 1. 45. American Philosophical Society HELD AT PHILADELPHIA FOR PROMOTING USEFUL KNOWLEDGE VOLUME XLV JANUARY TO DECEMBER 1906 PHILADELPHIA THE AMERICAN PHILOSOPHICAL SOCIETY Tille ? The Statistical Method in Chemical Geology. By F. W. CLARKE On a Possible Reversal of Deep-sea Circulation and its Influence on Geologic Climates. By THOMAS C. CHAMBERLIN. An International Southern Telescope. By EDWARD C. PICKERING.. A Biographical Notice of J. Peter Lesley. By HENRY M. CHANCE i |