SCIENCE 



Friday, February 14, 1919 



CONTENTS 

 Edward Charles PicVering : Professor Hen-ry 

 NORRIS RrSSELL 151 



The American Association for the Advance- 

 ment of Science: — 



Some Becent Contributions to the Physics 



of the Air: Dr. W. J. Humphreys 155 



Scieittific Events: — 



Memorial to Lewis Henry Morgan; The 

 British Dye Industry; Distribution of the 

 Membership of the American Chemical So- 

 ciety 163 



Scientific Notes and News 165 



University and Educational News 189 



Discussion and Correspondence: — 

 Applied Psychology: Professor E. B. 

 TiTCHENER. The Publication of Isis: Pro- 

 TESSOR George Sartox. A Steady Calendar: 

 Professor W. M. Davis 169 



Scientific Bools: — 



Loeb on Forced Movements, Tropisms and 

 Animal Conduct : Dr. W. J. Crozier 171 



The Geological Society of America: Dr. Ed- 

 mund Otis Hovey 172 



The American Phytopathological Society: Dr. 

 C. L. She.vr 174 



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

 review ahould be sent to The Editor of Science, Garrison-on- 

 Hudeon, N. Y. 



EDWARD CHARLES PICKERING 

 By the death of Edward C. Pickering 

 American science has lost one of its most 

 distinguished figures, one of the most note- 

 worthy contributors to its progress during 

 the past forty years, and one of its most in- 

 spiring and influential leadei-s. A full ac- 

 count of his long and active career would 

 demand far more space for its presentation 

 and time for its preparation than are at 

 the moment available : only the main events 

 and achievements of an exceptionally pro- 

 ductive life can be touched upon in these 

 few words of appreciation. 



Born at Boston, in 1846, of an old New 

 England family, and a graduate of Har- 

 vard of the class of 1S65, after two years as 

 instructor in mathematics, he became pro- 

 fessor of physics at the Massachusetts In- 

 stitute of Technologj", where he established 

 the first laboratory in America in which 

 students were instructed by actual contact 

 with phj-sical instruments and measure- 

 ments. Upon the death of Professor Win- 

 lock, the youngest physicist was called, in 

 1877, at the age of thirty-one, to the di- 

 rectorship of the Harvard College Observa- 

 tory, which he held for nearly forty-two 

 years, continuing the tradition of the in- 

 stitution, all of whose directors have died 

 in office. 



At this time most observatories were de- 

 voting themselves mainly to the old "as- 

 tronomy of position" — the determination 

 of the apparent positions of the stars and 

 other heavenly bodies upon the celestial 

 sphere, and of those constants of nature 

 which can be derived from such observa- 

 tions — and the "new astronomj-" (now bet- 



