Editorial Committee : S. Newcomb, Mathematics ; E. S. Woodward, Mechanics ; E. C. Pickering, 



Astronomy ; T. C. Mendenhall, Physics ; R. H. Thurston, Engineering ; Iba Ebmsen, Chemistry ; 



Joseph Le Conte, Geology ; W. M. Davis, Physiography ; Henry F. Osbobn, Paleontology ; 



W. K. Brooks, C. Hart Mereiam, Zoology ; S. H. Scuddee, Entomology ; C. E. Bessey, 



N. L. Beitton, Botany ; C. S. Minot, Emhryology, Histology ; H. P. Bowditch, 



Physiology ; J. S. Billings, Hygiene ; William H. Welch, Pathology ; 



J. MoKeen Cattell, Psychology ; J. W. Powell, Anthropology. 



Friday, July 27, 1900. 



CONTENTS: 



The Astronomical and Asirophyaical Society of Amer- 

 ica (I): Peofessor Geo. C. Comstoce i.21 



American 3Iathemaiical Society : Professor F. N. 



Cole 129 



The Relation of Biology to Physiography ; C. WlL- 



laed Hay;es, M. E. Campbell 131 



Oh the Evidence of Unionidx regarding the Former 

 Courses of the Tennessee and other Southern 



Rivers: Chas. T.Simpson 133 



Education at the Paris Exposition 136 



Eighteenth Annual Report of the Committee on In- 

 dexing Chemical Literature 138 



Saientific Books : — 



Watson's Text-book of Physics : Professor W. F. 

 Magie. Ornithology: A. K. F. Books Received.. 139 



Scientific Journals and Articles 141 



Societies and Academies : — 



T/ie Texas Academy of Sciences: F. W. S 142 



Discussion and Correspondence : — 



Epitropism, Apoiropism and the Tropaxis: Dr. 

 Charles A. White. Initiation of New Ele- 

 ments in Fossil Fauna : De. Charles E. Keyes. 

 Rapid Changes in the Structure of the Corona : 



Dr. H. Helm Clayton 143 



Notes on Inorganic Chemistry: J. L. H 147 



Notes on Oceanography : — 



T!ie Nomenclature of Submarine Relief; Tlie Lith- 

 ology of Ancient Marine Sediments: Dr. Eeg- 



INALD A. Daly 148 



Zoological Notes : F. A. LucAS 150 



Botanical Notes : — 



Genera of American Grasses ; Weeds of the North- 

 western Territories; The Ferns and Flowering 

 Plants of Oklahoma ; North American Fox-tail 

 Grasses; Mosses of the Cascade Mountains : Pro- 

 fessor Charles E. Bessey 150 



Activity in Magnetic Work 152 



Jenner Institute of Preventive 3Iedicine 153 



The British National Physical Laboratory 154 



Protection and Importation of Birds 155 



Monument to Professor Baird 156 



Scieniifie Notes and News 157 



University and Educational News 160 



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

 for review should be sent to the responsible editor, Profes- 

 sor J. McKeen Cattell, Garrison-on-Hudson, N. Y. 



THE ASTRONOMICAL AND ASTROPHYSICAL 

 SOCIETY OF AMERICA. 



The second annual meeting of the As- 

 tronomical and Astrophysical Society of 

 America (fourth conference of astronomers 

 and astrophysicists) was held on June 26- 

 28, 1900, at Columbia University, in the 

 City of New York, in connection with the 

 forty-ninth annual meeting of the American 

 Association for the Advancement of Science. 



A brief report was presented by the 

 Secretary upon the action of the Council in 

 administering the affairs of the Society 

 during the past year showing an addition of 

 forty-three members since the date of the last 

 meeting. With one exception the ofiScers of 

 the Society whose terms of ofBce expired at 

 the present meeting were re-elected, and the 

 list for the year 1900^'01 is as follows : Pres- 

 ident, Simon Newcomb, of Washington, D. 

 C. ; First Vice-President, Charles A. Young, 

 of Princeton, N. J. ; Second Vice-President, 

 George E. Hale of Williams Bay, Wis. ; 

 Secretary, George C. Comstock of Madison, 

 Wis. ; Treasurer, Charles L. Doolittle of 

 Philadelphia, Pa. ; Councillors, Edward C. 

 Pickering of Cambridge, Mass. ; James E. 

 Keeler of Mt. Hamilton, Cal. ; Ormond 

 Stone of Charlottesville, Va. ; and Stimson 

 J. Brown of Washington, D. C. 



By direction of the Council the next an- 

 nual meeting of the Society will be held in 

 Denver, Col., in August, 1901. 



