SPTFNPF 



Editobiai. Committee: S. Newcomb, Mathematics; R. S. Woodward, Mechanics; E. C. Piokkbinp, 



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



J. Lb CoNTE, Geology; W. M. Davis, Physiography; Henry F. Osbokn, Paleontology; W. K. 



Brooks, C. Hart Meeriam, Zoology; S. H. Scuddee, Entomology; C. E. Bessey, N. L. 



Britton, Botany; C. S. Minot, Embryology, Histology; H. P. Bowditch, Physiology; 



J. S. Billings, Hygiene ; J. McKeen Cattkll, Psychology; 



J. W. Powell, Anthropology. 



Friday, March 30, 1900. 



C0]S!TJ<:NTS: 



^Educational Values: Professor W. Le Conte 

 Stevens 481 



Pictures produced on Photographic Plates . in the 

 Dark : Dr. William J^mes Russell 487 



Degeneration in the Eyes of the Cold-blooded Verte- 

 brates of the North American Caves : PROFESSOR 

 C. H. Eigenmann 493 



Scientific Books : — 

 Kemp on the Ore Deposits of the United States 

 and Canada: S. F. Emmons. MacDougal on 

 the Nature and Work of Plants : Professor 

 Charles E. Bessey. De praktische Toepas- 

 sing : R. H. T. Mesure des temperature eluvees : 

 Professor Baeus 503 



Societies and Academies : — 



Geological Soriety of Washington : F. L. Ran- 

 SOME, David White. New York Academy of 

 Sciences, Section of Anthropology and Psychol- 

 ogy : Professor Chaeles H. Judd. Zoological 

 Club of the University of Chicago: De. C. M. 

 Child. Academy of Science of St. Louis ■■ Pro- 

 fessor William Trelease 507 



Discussion and Correspondence : — 



' Floating Sayid ' , ' Floating Stones ' ; Peofes- 

 SOE Feedeeic W. Simonds. Sea-birds a Satii- 

 tary Necessity .' 510 



Notes on Electrical Engineering : — 

 A Netv Industrial Situation ; Wireless Telegraphy : 

 W. S. F 513 



Ciirrent Notes on Physiography : — 

 lowan Drift ; Western Australia ; Mountains and 

 ' Valleys ' ; The Meuse in Belgium : PROFES- 

 SOR W. M. Davis 515 



Notes on Inorganic Chemistry: J. L. H 516 



Scientific Notes and News 517 



University and Educational News 520 



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

 for review should be sent to tlie responsible editor. Profes- 

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



EDUCATIONAL VALUES* 

 History is always an attractive subject 

 because it appeals to our sympathies. 

 There is not one of us who has not been 

 spurred to effort by the hope of reward, 

 intellectual, moral, social, or material. 

 Every one has at times enjoyed the con- 

 sciousness of success, or suffered the sting 

 of failure. The history of the race is the 

 collective history of individuals. Every 

 individual can in imagination put himself 

 into the place of the actors who have left 

 strong impressions on the world and been 

 enrolled among the makers of history. 



The history of education appeals less 

 strongly to our feelings than does the 

 recital of deeds that determined or de- 

 stroj'ed men's leadership in the control of 

 their fellows. But all of us have a very 

 real interest in some of the educational 

 problems of the day. From some points of 

 view it is fortunate, from others, unfortu- 

 nate, that the consideration of these prob- 

 lems implies conflict. We have all heard 

 about a conflict, which is said to be very 

 sanguinary, between the advocates of scien- 

 tific study and those of liberal culture. I 

 must confess that in my earliest manhood I 

 rushed into this affray with all the joy and 

 enthusiasm and self-confidence that a young 

 man feels when he knows that he must be 

 inflicting hard blows upon the adversary, 



*An address before the student body of Washington 

 and Lee University, Febrnary 14, 1900. 



