SCIENCE 



Fridat, April 1, 1910 



CONTENTS 



The Cultural Factor in the Dental Cur- 

 riculum: Professor Edward C. Kirk .... 481 



The Problem of the Assistant Professor: Pro- 

 fessor GuiDO H. Marx 488 



Scientifio Notes and News 497 



University and Educational News 500 



Discussion and Correspondence: — 



Fracastorius, AthaiWisius Kircher and the 

 Germ Theory of Disease: Dr. Fielding H. 

 Garrison. The Lower Tertiaries of Louisi- 

 ana: Dr. G. D. Harris. The Length of 

 Service Pensions of the Carnegie Founda- 

 tion : Professor Wm. Herbert Hobbs .... 500 



Scientifio Books: — 



Kastle on the Oaddases and other Oxygen 



• Catalysts concerned in Biological Oxida- 

 tion: Professor W. H. Howell. Lowell 

 on the Evolution of Worlds: Professor 

 Charles Lane Poor. Turner on Aerial 

 Navigation of To-day: Professor A. Law- 

 rence EoTOH 504 



Scientific Journals and Articles 508 



Reflections on Joly's Method of Determining 

 the Ocean's Age: Dr. George F. Becker . . 509 



Botanical Notes: — 



Recent Studies of the Fungi; Nomenclature 

 of the Fungi; Descriptive Botany of the 

 Flowering Plants: Professor Charles E. 

 Besset 512 



Special Articles: — 



The Sex-determining Chromosomes in As- 

 caris : Professor Charles L. Edwards . . . 514 



The American Federation of the Teachers of 

 the Mathematical and Natural Soiences: 

 Professor C. E. Mann 515 



The American Association of Economic Ento- 

 mologists 516 



Societies and Academies: — 



The Oeological Society of Washington: 

 Edson S. Bastin, Francois E. Matthes. 

 The Biological Society of Washington: D. 

 E. Lantz. The American Chemical Society, 

 Neio York Section: C. M. Joyce. The 

 Chemical Society of Washington: J. A. 

 LeClerc 516 



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

 review should be sent to the Editor of Science, Garrison-on- 

 Hudson, N. Y. 



THE CULTURAL FACTOR IN THE DENTAL 

 CURRICULUM ^ 



First of all let me discharge the pleasur- 

 able duty imposed upon me by the admin- 

 istration of the University of Pennsylvania 

 and its faculty of dentistry, by conveying 

 to you their fraternal greetings and hearty 

 congratulations upon the completion of 

 this splendid edifice which to-day you dedi- 

 cate to the purposes of education in an im- 

 portant specialty of the science and art of 

 healing. 



It is characteristic of the things of the 

 mind that they are unhampered by the limi- 

 tations of time or extent, that the common- 

 wealth of intellect is without geographical 

 boundaries or distinctions of caste, race or 

 nationality; that the pursuit of the intel- 

 lectual ideal lifts all to the level of a com- 

 mon brotherhood; and it is in the spirit of 

 this larger fraternalism that I bring you 

 the salutations and greetings of one of the 

 oldest institutions of learning established 

 by England in her American colonies. It 

 is by reason of our common origin as well 

 as by reason of our common ideal that I 

 have a peculiar pleasure in being present 

 upon this happy occasion as the temporary 

 mouthpiece of an elder sister institution to 

 discuss with you briefly something of the 

 circumstances and conditions which en- 

 viron the special department of education 

 with which we are mutually concerned, 

 and, claiming the prerogative of an elder 

 sister somewhat, to point out a few of the 

 difSeulties to be overcome by her younger 



' Delivered at the dedication of the new building 

 of the Royal College of Dental Surgeons, Toronto, 

 December 29, 1909. 



