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. 



Editoeial Committee : S. Newcomb, Mathematics ; E. S. Woodwaed, Mechanics ; E. C. Pickeking, 

 Astronomy ; T. C. Mendenhall, Physics ; R. H. Thueston, Engineering ; Iea Eemsen, Chemistry ; 

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

 tology ; W. K. Beooks, C. Haet Mberiam, Zoology ; S. H. Scuddbe, 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. McKeen Cattell, Psychology ; J. W. Powell, Anthropology. 



Friday, Apeil 11, 1902. 



CONTENTS: 



Know, Then, Thyself: Dr. Frank Russell.. 561 



The American Morphological Society (11.) : 

 Dr. M. M. Metcalf 571 



The American Philosophical Association .... 583 



Scientific Books: — 



Lockyer's Inorganic Evolution as studied 

 ty Spectrum Analysis: Professor Edwin 

 B. Frost. Jones's Outlines of Electro- 

 chemistry: Professor Edgar F. Smith. 

 Effront's Enzymes and their Application: 

 Dr. Albert F. Woods. Znicas's Animals of 

 of the Past : Professor S. W. Williston . . 584 



Scientific Journals and Articles 587 



Societies and Academies : — 



Philosophical Society of Washington: 

 Charles K. Wead. Biological Society of 

 Washington : F. A. Lucas. Torrey Botanic- 

 al Club: Professor Edward S. Burgess. 

 The Las Vegas Science Club : T. D. A. C. . . 588 



Discitssion and Correspondence : — 



Song in Birds: Wallace Craig. A Geo- 

 graphical Society of America : Dr. J. Paul 

 Goode. The Word 'Ecology': Professor 

 Charles E. Bessey; Professor Lester F. 

 Ward; Dr. Theo. Gill; Professor W. F. 

 Ganong ; G. K. Gilbert 590 



Current Notes on Meteorology: — 



Fog in Switzerland; Hail Prevention; 

 Notes : Professor R. DeC. Ward 594 



Johann von Radinger: Professor R. H. 

 Thurston 595 



Scientific Notes and News 596 



University and 'Educational News 599 



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

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

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



KNOW, THEN, THYSELF.* 

 Long ago, as history measures time, 

 when our planet was regarded as a flat disk 

 girt by an unlmown sea, and heaven was 

 no farther away than the fair summit of 

 Mount Olympus; wlien learning centered 

 about the eastern curve of the Mediterra- 

 nean, and a knowledge of music, mathe- 

 matics and philosophy constituted a liberal 

 education, a master mind emphasized the 

 seemingly simple precept, ' Know thyself. ' 

 Centuries later, when the disk had 

 rounded into a sphere; when Jehovah had 

 superseded Jove ; when civilization had be- 

 come continental; when the classics, mod- 

 ern languages and literature had been 

 added to the list of scholarly pursuits, a 

 keen little Englishman echoed the injunc- 

 tion of the ancient Greek. 



And to-day, when scientific research has 

 extended beyond the confines of the habit- 

 able portion of the earth, invaded the 

 depths of the sea, explored the uttermost 

 heights of the atmosphere and mapped the 

 heavens; when God is worshipped as a 

 spirit and ever more reverently as we begin 

 to comprehend the marvels of his creation ; 

 when the making of many books has given 

 this knowledge entrance through every door 

 open to receive it, how much more reason 

 have we than had Alexander Pope to re- 



* Address of President of American Folk-lore 

 Society at aimual meeting, Chicago, January 1, 



