SCIENCE 



Friday, April 16, 1920 



CONTENTS 



The American Association for tlie Adva/nce- 



ment of Science: — 

 Sexuality in Mucors: Dr. Albert F. Bla- 

 , KESLEE 375 



An Analysis of Aim and Incentive in a Course 

 in General Zoology: Dr. Harold Sellers 



COLTON 382 



Physical Methods and Measurements and the 

 Obligation of Physics to other Sciences: Dr. 

 Paul E. Klopsteg 384 



Scientific Events: — 



The Ohio College and Experiment Station; 

 The Louisiana Entomological Society; The 

 Southwestern Geological Society ; The Amer- 

 icam Electrochemical Society; Fiftieth Anni- 

 versary of the Wisconsin Academy 386 



Scientific Notes and News 388 



University and Educational News 390 



Discussion and Correspondence: — 



A Suggestion as to tlie Flagellation of the 

 Organisms causing Legume Nodules: Drs. 

 H. J. Conn and R. S. Breed. Pensions for 

 Government Employees: Professor T. D. 

 A. CocKERELL. The Recent Auroras: Dr. 

 Charles F. Brooks 391 



Quotations: — 



Civil Service Pensions 392 



The Ecological Relations of Boots: Dr. W. A. 

 Cannon 393 



Special Articles: — 



The Tertiary Formations of Porto Bieo: 

 Bela Hubbaro 395 



The American Chemical Society: Dk. Charles 

 L. Parsons 397 



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

 review should be sent to The Editor of Science, Garriaon-on- 

 Hudson, N. Y. 



SEXUALITY IN MUCORSi 



The keywords of the vice-president's ad- 

 dress and the sympositmi which followed it 

 last year were Organization, Coordination and 

 Cooperation in botanical research. It is not 

 my purpose at this time to discuss these 

 topics further. A botanical committee of the 

 National Research Council has been selected 

 for this purpose. A second committee was 

 chosen by the Botanical Society of America 

 two years ago to help the first committee and 

 last year a third committee was appointed to 

 help the other two. The organization seems 

 sufficiently complete unless I might suggest 

 as a humble member of this last-named com- 

 mittee that a new committee be formed at 

 this session to help us also in our delibera- 

 tions which have not as yet taken place. 



One of last year's speakers, in distinguish- 

 ing types of true research worth while from 

 investigations unworthy of the name, held up 

 to ridicule a hypothetical investigation of a 

 ham sandwich and the pseudo-scientist who 

 would attempt a monographic treatment of 

 such a subject. In defence of the maligned 

 sandwich, a correspondent has offered the 

 following lines : 



Sandwich perched by the lunchroom wall, 

 I lift you down from the perches. 

 Hold you here, ham and all, in my hand. 

 Little sandwich! But if I could understand 

 What you are, ham and all, and all in all, 

 I should know what true research is. 



It is not of so broad a subject as the sand- 

 wich in its entirety, neither of the ham nor 

 of the bread between which it nestles that I 

 wish to speak. Rather it is the mold that 

 sometimes grows on the bread that encircles 

 the ham, or more especially the less commonly 



1 Address of the vice-president and chairman of 

 Section G, Botany, American Association for the 

 Advancement of Science, St. Louis, December 30, 

 1919. 



