SCI 



A WEEKLY JOURNAL DEVOTED TO THE ADVANCEMENT OF SCIENCE, PUBLISHING THE 



OFFICIAL NOTICES AND PROCEEDINGS OF THE AMERICAN ASSOCIATION 



FOR THE ADVANCEMENT OF SCIENCE. 



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

 Astronomy ; T. C. Mendenhall, Physics ; R. H. Thurston, Engineering ; Ira Remsen, Chemistry ; 

 Charles D. Walcott, Geology ; "W. M. Davis, Physiography ; Henry F. Osborn, Paleon- 

 tology ; W. K. Brooks, C. Hart Merriam, Zoology ; S. H. Scudder, Entomology ; C. E. 

 Bessey, N. L. Britton, Botany ; C. S. Minot, Embryology, Histology ; H. P. Bow- 

 ditch, Physiology; J. S. Billings, Hygiene; William H. Welch, Pathol- 

 ogy ; J. McKeen Cattell, Psychology ; J. W. Powell, Anthropology. 



Friday, August 16, 1901. 



CONTENTS : 



The American Association for tlie Advancement of 

 Science 233 



Regeneration and Liability to Injury: Professor 

 T. H. Morgan 235 



Some Conditions Influencing Success at School: 

 Professor Edwin G. Dexter 248 



Memhership of the American Association 255 



Scientific Books : — 



Eecent Text-books on Physics: PROFESSOR W. 

 LeConte Stevens. Lang on Protozoa : Pro- 

 fessor H. S. Jennings. Coulter and Cham- 

 berlain's 3Iorphology of Spermatophytes ; Cham- 

 berlain's Methods in Plant Histology: Pro- 

 fessor Charles E. Bessey' 257 



Scientific Journals and A rticles 261 



Discussion and Correspondence : — 



The Visual Perception of Space : Professor J . 

 McKeen Cattell 263 



Circular of Information in regard to the Causation 

 and Prevention of Malarial Fever: Dr. Her- 

 mann M. Biggs 266 



77(6 British Congress of Tuberculosis 267 



Geological Explorations at Pikermi 268 



Scientific Notes and News 269 



University and Educational News 272 



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

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

 fessor J. Mclveen Cattell, Garrison-on-Hudson, N. Y. 



THE DENVER MEETING. 



The Denver Meeting of the American 

 Association for the Advancement of Science 

 is an important event in the history of 



science in America, giving as it does official 

 recognition to the development of science 

 in the west. The scientific men of the 

 country have been mostly collected together 

 on the Atlantic seaboard between Boston 

 and Washington, and the membership of 

 the scientific societies has been chiefly in 

 this region. The American Association 

 has not hitherto met further to the west 

 than St. Louis, and at the meeting in that 

 city, twenty-three years ago, there were 

 only 134 members in attendance, while two 

 years later at Boston the attendance was 

 997. 



During its first hundred years the nation 

 was in scientific matters somewhat in the 

 relation of a colony to Europe. Our stu- 

 dents went abroad for study ; we depended 

 on Europe for our journals and books, and 

 did not contribute our share to the work of 

 the world. During the subsequent twenty- 

 five years great progress has been made. 

 The opening of the Johns Hopkins Univer- 

 sity in 1876 marked and helped to create a 

 new epoch in university education. In the 

 same year, the American Chemical Society 

 was organized, leading the way in the es- 

 tablishment of our national societies devoted 

 to special sciences. At about the same 



