SCIENCE 



Friday, July 1, 1910 



CONTENTS 



Physics and Education: Peofessoe C. R. 

 Mann 1 



Professorial Ethics: John Jay Chapman ... 5 



.Address at Ann,ual Banquet of the American 

 Chemical Society: Pkesident Richaed C. 

 Maclaukin 10 



The Salaries of Professors at Yale University 12 



Scientific Notes and News 13 



University and Educational Neics 17 



Discussion and Correspondence: — 



The Reliaiility of " Marks ": Peofessoe H. 

 Adstin Aikins. An Unusual Nesting Site 

 of the Mocking Bird: H. A. Allabd. The 

 International Scientific Association: Edwin 

 C. Reed '. 18 



Scientifio Books: — 



Wilder's History of the Human Body: Peo- 

 fessoe Leonabd W. Williams. Wright's 

 The Black Bear: De. Roy L. Moodie .... 20 



Notes on Entomology : Nathan Banks 21 



The Study of Tropical Forests: Peofessoe J. 

 Paul Goode 23 



Special Articles: — 



Sketch of the Geologic History of the 

 Floridian Plateau: Db. T. Wayland 

 Vaughan. Glacial Lakes of the Catskill 

 Valley: De. Geoege H. Chadwick. On the 

 Stickleback of Lake Superior: De. George 

 Wagnee 24 



The Geological Society of America: — 



Eleventh Annual Meeting of the Cordil- 

 leran Section: Peofessoe Geoege D. Loud- 



EEBACK 30 



Societies cmd Academies: — 



The Geological Society of Washington: 

 Edson S. Bastin. The Neio York Section 

 of the American Chemical Society: C. M. 

 Joyce 32 



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

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

 Hudson, N. Y. 



'' PHYSICS AND EDUCATION 

 At the recent meeting of the American 

 Association for the Advancement of Sci- 

 ence a joint session of Sections B, Physics, 

 and L, Education, was devoted to a discus- 

 sion of the teaching of physics. This is the 

 fii-st time in the history of the association 

 that such a discussion has formed part of 

 the regular program. It indicates the 

 change that is slowly but surely creeping 

 over the university mind of the country 

 in that the problems of teaching are com- 

 ing to be regarded as research problems of 

 at least no less importance and diificulty 

 than those of pure science. Section L, to 

 be sure, devotes all its sessions to the pre- 

 sentation and discussion of research work 

 in education; but it is encouraging to 

 have Section B also turn its attention in 

 this direction. 



Those who attended this joint session 

 have been impressed with the wide differ- 

 ence in the points of view from which the 

 two sections surveyed the field. It is a 

 familiar fact that specialists in any field 

 are very wary about committing them- 

 selves definitely in reply to questions 

 about their specialty. Ask a geologist 

 what a specimen of rock is, and he will 

 reply that it looks like limestone, and 

 probably is that, but he would not care to 

 be quoted as having said that it was lime- 

 stone until he had made suitable tests and 

 verified the statement carefully. The 

 same geologist does not hesitate to give 

 final decisions on matters of politics or 

 even of education, although he has never 

 studied either scientifically. He would 

 even be ready to legislate about the re- 



