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. 



Friday, March 25, 1904. 



C0'^^TENT8: 



Recent Advances in the Teaching of Physics: 

 Pkofessor Henky Ceew 481 



The Science of Smoke Prevention: Professor 

 Chas. H. Benjamin 488 



The Cardinal Principles of Ecology: Pro- 

 fessor W. F. Ganong 493 



Scientific Books : — 



Palmer's Index Generum Mammalium: J. 

 A. A. Neicstead's Monograph of the Coc- 

 oidae of the British Isles: T. D. A. CocK- 

 EBELL 498 



Scientific Journals and Articles 502 



Societies and Academies: — 



The Geological Society of Washington: Al- 

 fred H. Brooks. Section of Biology of 

 the New York Academy of Sciences: Pro- 

 fessor M. A. BiGELOw. The Academy of 

 Science of St. Louis 502 



Discussion and Correspondence : — 



Instahility of the Water Supply of the Rio 

 Q-rande: Dr. F. S. Dellenbatjgh 505 



Special Articles: — 



Biological Survey of the Waters of South- 

 ern California: Professor Charles At- 

 WOOD KoFOiD. The Necessity for Reform 

 in the Nomenclature of the Fungi: Dr. F. 

 S. Earle. Energetics and Mechanics: Pro- 

 fessor Frederick Slate 505 



Quotations: — 



President Eliot 5 2 



Notes on Inorganic Chemistry: — ■ 



Water Gas in the Chemical Laboratory; 



Yellow Arsenic; Copper Cyanid Solutions; 



Corrosion of Iron Water Mains: J. L. H. . 513 



A Quarterly Issue of the ' Smithsonian Miscel- 

 laneous Collections '.._ 514 



Botanical Work in the Philippines 516 



Scientific Notes and Neics 516 



University and Educational News 519 



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

 for review should be sent to the Editor of Science, Garri- 

 eon-on-Hudson, N. Y. 



RECENT ADVANCES IN THE TEACHING OF 

 PHYSICS:-- 



This is an hour when anything but con- 

 gratulation is impossible, not alone for this 

 queenly city seated at the foot of the 

 majestic Front Eange, but for the entire 

 commonwealth. The foresight as well as 

 the generosity of the donor in aiding an 

 institution which had already richly de- 

 served such aid, the skill and taste of the 

 architect, the adaptation of the laboratories 

 to the needs of modern science, these all 

 command our admiration. The manner in 

 which a quarter of a century has trans- 

 formed a mountain foothill into an educa- 

 tional center challenges the respect of 

 every one. 



From a sister university on the eastern 

 slope of the Mississippi I bring to your 

 president and to his staff greetings and all 

 good wishes. I bring them no reminder of 

 the responsibility which always accom- 

 panies opportunity such as is represented 

 by this building, for there is probably, in 

 all the land, no group of men more keenly 

 aware of the fact that endowment and 

 duty are close friends. No one knows bet- 

 ter than the men who have this work in 

 hand that not to advance is to recede. 



Times are not so simple as they were even 

 twenty-five years ago, and we are finding 

 ourselves daily more and more in the posi- 

 tion of the red queen in the Alice books 

 where 'it takes all the running you can 

 do to keep in the same place.' 



•■" Paper read before the Science Conference held 

 at the dedication of Palmer Hall, Colorado Col- 

 lege, February 22, 1904. 



