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. 



Editorial Committee : S. Newcomb, Mathematics ; E. S. Woodwaed, Meohanioa ; E. C. Pickering, 

 Astronomy ; T. C. Mendbnhall, Physios ; R. H. Thukston, Engineering ; Iea Remsen, Chemistry ; 

 Chaeles D. Walcott, Geology ; "W. M. Davis, Physiography ; Heney F. Osboen, Paleon- 

 tology ; W. K. Beooks, C. Haet Meeeiam, Zoology ; S. H. Scuddee, Entomology ; C. E. 

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

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

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



Friday, Mat 2, 1902. 



CONTENTS: 



The American PliilosopMcal Society: — 

 The President's Address: General Isaac 



J. WiSTAK 681 



The General Meeting 686 



Our Sister Societies: Professor Edward 

 S. Morse 698 



Scientific Books : — 



Giddings's Inductive Sociology: Professor 

 Albion W. Small. Carpenter's The Micro- 

 scope and Its Revelations: Professor 

 Henry B. Ward. Pernter's Meteorological 

 Optics: Professor C. Abbe 700 



Scientific Journals and Articles 708 



Societies and Academies: — 



The Biological Society of Washington: F. 

 A. Lucas. The Philosophical Society of 

 Washington : Charles K. Wead. The Geo- 

 logical Society of Washington: Alfred H. 

 Brooks. The Torrey Botanical Club: Pro- 

 fessor Edward S. Burgess. University of 

 Wisconsin Science Club: C. K. Leith.... 709 



Discussion and Correspondence: — 



The Mathematical Theory of the Top : Pro- 

 fessor A. 6. Gbeenhill. Steiner's ' Lost ' 

 Manuscript of 1826: Dr. Arnold Emch. 

 Ati Unpublished Letter by Rafinesque : Dr. 

 R. Ellsworth Call. ' Nodules ' in Colored 

 Blood Corpuscles : Professor G. N. Stew- 

 art. A Mud Shower: Professor J. W. 

 Moore. The ' Prickly Pear ' : Charles H. 

 Sternberg. The Song of Birds: Walter 

 S. Kelley. The Conger Eel: Barton A. 

 Bean. Correspondence of the late Professor 

 Joseph Leidy: Dr. Joseph Leidy 712 



Shorter Articles: — 



The Hydrolysis and Synthesis of Ethyl 

 Butyrate by Platinum Black: Hugh Neil- 

 son. The Jackson Outcrops on Red River: 

 Major Thos. L. Casey. The Monophlebine 

 Coccidce: Professor T. D. A. Cockerell.. 715 



fie Notes and News 718 



id Educational News 720 



THE AMERICAN PHILOSOPHICAL SOCIETY. 



THE president's ADDRESS. 



The American Philosophical Society has 

 conferred upon me the duty and pleasure 

 of offering to you a hearty welcome to this 

 General Meeting of the Society, and of ex- 

 pressing the gratification felt by all its 

 resident members at the success which has 

 rewarded their effort to assemble in this 

 historic hall as many as possible of our 

 non-resident members and friends from 

 other parts of our country. Though wide- 

 ly separated as regards residence, and in 

 the character of our labors, we are all of 

 us as members warmly interested in the 

 success and renown of our ancient Society. 

 We who happen to live here know, and 

 have always known, that our non-resident 

 but fellow members, however distant they 

 may be, constitute nevertheless as learned 

 and accomplished a body of scholars as 

 could be assembled anywhere. We know 

 this partly from our limited opportunities 

 of personal acquaintance, which we ardent- 

 ly hope may be more frequent hereafter, 

 and we also know it as the world knows it, 

 from their high distinction in science, from 

 their published contributions to the world's 

 knowledge, and as we gratefully acknowl- 

 edge — from the abundant fruits of their 

 labors sometimes contributed here, and 

 which we take pleasure and pride in con- 

 sidering and discussing and giving to the 



