FEB 



SCIENCE 



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

 OFFICIAL NOTICES AND PROCEEDINGS OF THE AMERICAN ASSOCIATION 

 FOR THE ADVANCEMENT OF SCIENCE. 



Friday, February 24, 1905. 



CONTENTS: 



The Pfohlem of Development : Professor Ed- 

 mund B. Wilson 281 



The American Paleontological Society — Sec- 

 tion A — Vertehrala: 0. P. Hat 294 



The Association of American Geographers: 

 Professor Albert P. Brigham 300 



Scientific Books: — 



Maurer's Technical Mechanics, Ziwefs 

 Theoretical Mechanics and Stephan's Die 

 technische Mechanik: Professor L. M. 

 HosKiNS 302 



Scientific Journals and Articles 307 



Societies and Academies : — 



The New York Academy of Sciences, Sec- 

 tion of Astronomy, Physics and Chemistry : 

 Dr. C. C. Trowbridge. The Philosophical 

 Society of Washington: Charles K. Wead. 

 Biological Society of Washington: E. L. 

 Morris. The Onondaga Academy of Sci- 



ence: Professor J. E. Kirkwood 308 



Discussion and Correspondence: — 



Consulting Experts in Libraries: Dr. J. 

 David Thompson. The Storage of Micro- 

 scopic Slides: Josephine Shatz 313 



Special Articles: — 



Doppler's Principle and Light Beats: Al- 

 bert B. Porter. Note on the Broad White 

 Fish: Henry W. Fowler 314 



Recent Zoopuleontology : H. F. 315 



Scientific Notes and News 316 



University and Educational Neics 320 



MSS. Intended for publicatiou aud books, etc., intended 

 for review should be sent to the Editor of Science, Garri- 

 son-on-Hndson, N. Y. 



THE PROBLEM OF DEVELOPMENT.* 



The selection of such a subject as the 

 problem of development for a general ad- 

 dress to this academy as a whole suggests 

 a word of explanation. Within the 

 privacy of our sectional meetings we are 

 permitted to dig and delve as much as we 

 please among the dry bones of specializa- 

 tion ; but on this occasion a righteous tradi- 

 tion imposes upon the president the duty 

 of laying aside his special tools in order to 

 address the whole scientific body over 

 which he has for a time had the honor to 

 preside. In offering a brief general dis- 



* Annual address of the president, New York 

 Academy of Sciences, December 19, 1904. The 

 critical reader will, I hope, be willing to bear in 

 mind the conditions under which this address was 

 delivered. My endeavor was to convey to a scien- 

 tific body, composed only in part of biologists, 

 some individual impressions of a student of em- 

 bryology and cytology regarding the general bear- 

 ings of recent researches in his special field. It 

 was not consistent with this purpose to give a 

 critical resumS for biologists, nor could author- 

 ities be cited in detail. The general conception 

 here developed will recall certain views contained 

 in Driesch's ' Analytische Tlieorie der organischen 

 Entwicklung,' published in 1894 (themselves 

 traceable to earlier conclusions of de Vries) , but 

 afterwards rejected by him in favor of an explicit 

 theory of vitalism. The rediscovery of Mendelian 

 inheritance, the newly produced evidence, on the 

 one hand, of morphological and physiological 

 diversity among the chromosomes; on the other, 

 of protoplasmic prelocalization in the egg, have, 

 however, placed the whole problem in a new light. 

 I wish to acknowledge my indebtedness to Pro- 

 fessor Whitman's fine essays on the questions that 

 center in Bonnet's doctrines, published in the 

 ' Wood's Hole Biological Lectures,' for 1893, which 

 suggested the quotation from Huxley. 



