SCIENCE 



Friday, Februaet 18, 1910 



CONTENTS 

 The American Association for the Advance- 

 ment of Science: — ■ 

 Principles of Paleogeography : Bailey 

 Willis 241 



A National Bureau of Seismology : Professok 

 Wm. H. Hobbs 260 



Scientific Notes and News 260 



University and Educational News 262 



Discussion and Correspondence: — 

 Earlier References to the Relation of Flies 

 to Disease: De. Wm. A. Kiley 263 



Scientific Books: — 



A Treatise on Zoology, Goodrich on Cyclo- 

 stomes and Fishes: Peofessob Bashfoed 

 Dean. Handlist of the Genera and Species 

 of Birds: De. J. A. Allen. Riclmrz's 

 Anfangsgriinde der Maxwellschen Theorie 

 verkniipft mit der Elektronentheorie : Peo- 

 fessob S. J. Baenett 264 



Scientific Journals and Articles 267 



The Forty-first General Meeting of the Amer- 

 ican Chemical Society : D. L. Randall . . . 268 



The American Association for the Advance- 

 ment of Science: — 

 Section K: Db. Geoege T. Kemp 276 



Section F : Peofessob M. A. Bigelow .... 277 



Societies and Academies: — 

 The Torrey Botanical Club : Pebcy Wilson. 

 The Philosophical Society of Washington: 

 R. L. Faeis. The Chemical Society of 

 Washington: J. A. LeCleec. The Amer- 

 ican Philosophical Society 277 



MSS. intended for publication and books, etc., intended for 

 review should be sent to the Editor of Science, Garrison-on- 

 Hudson, N. Y. 



TEE AMERICAN ASSOCIATION FOR THE 

 ADVANCEMENT OF SCIENCE 

 ■/principles OF PALEOGEOGRAPHY' 

 y INTRODUCTION 



The science of the geography of past 

 geologic periods, which is sometimes known 

 as paleogeography, is a young science that 

 has all its future before it. It springs 

 from several older sciences: geography, 

 geology, meteorology and paleontology; 

 and in its development it must rest upon 

 their general principles. 



Paleogeography may be defined as the 

 science of geography of all periods of the 

 globe's history since earth, air, and water 

 assumed those states in which they now ex- 

 ist. The science does not extend to any 

 earlier state of the world. But from the 

 time of the earliest lands, seas, and at- 

 mosphere to the present, the sequence of 

 geographic conditions comprises the facts 

 of paleography. 



The science is very comprehensive. It 

 includes not only the arrangement of con- 

 tinents and oceans and their individual 

 features, but also the topography of lands, 

 the circulation of oceanic waters and of the 

 atmosphere, the climate, and the distribu- 

 tion of life, which were characteristic of 

 the earth's surface during any particular 

 epoch. It must trace the changes in these 

 features from epoch to epoch, and with the 

 aid of all allied physical and biological 

 sciences, paleogeogTaphy should search out 

 the ultimate causes which actuate the de- 



'- Address of the vice-president and chairman of 

 Section E — Geology and Geography. American 

 Association for the Advancement of Science, Bos- 

 ton, December 28, 1909. 



