Mabch 10, 1916] 



SCIENCE 



359 



Immunity to a Transplantable Tumor of the 

 Japanese Waltzing Mouse. ' ' 



The session of the afternoon consisted of a sym- 

 posium on the subject "Recent Advances in the 

 Fundamental Problems of Genetics." 



H. H. Bartlett, "The Status of the Mutation 

 Theory with Especial Reference to the Genus 

 (Enothera. ' ' 



W. L. Tower, ' ' Experimental Eeproduction of 

 Recurrent Mutations." 



E. M. East, ' ' The Significance of Selective 

 Elimination of Gametes and Zygotes in Partially 

 Sterile Hybrids." 



H. S. Jennings, ' ' Heredity, Variation and Se- 

 lection in Uniparental Reproduction." 



0. B. Davenport, ' ' Inheritance of Human 

 Traits. ' ' 



The Naturalists' dinner was held on the evening 

 of December 30, at the Hotel Chittenden, with 

 one hundred and fifty in attendance. Professor 

 P. R. Lillie, as president of the Naturalists and 

 vice-president of Section P, American Association 

 for the Advancement of Science, read a paper on 

 "The History of the Fertilization Problem." 



The officers of the society for 1916 are: 



President — Raymond Pearl, Maine Agricultural 

 Experiment Station. 



Vice-president — Albert F. Blakeslee, Carnegie 

 Station for Experimental Evolution. 



Secretary — Bradley M. Davis, University of 

 Pennsylvania (1914-16). 



Treasurer — J. Arthur Harris, Carnegie Station 

 for Experimental Evolution (1915-17). 



Additional Members of the Executive Com- 

 mittee — Edward M. East, Harvard University 

 (1916) ; Henry V. Wilson, University of North 

 Carolina (1915-17) ; Frank R. Lillie, University 

 of Chicago (1916-18). 



Beadlet M. Davis, 

 Secretary for 1915 



THE AMERICAN PSYCHOLOGICAL 

 ASSOCIATION 



The twenty-fourth annual meeting of the Ameri- 

 can Psychological Association was held at the Uni- 

 versity of Chicago, December 28, 29 and 30, 1915. 

 The sessions were very largely attended. The pro- 

 gram listed more than seventy titles. Of these, 

 twenty-two were studies in mental tests. Animal 

 and educational psychology had eight titles each, 

 while in the field of general experimental psychol- 

 ogy there were thirteen papers. Of the remain- 

 ing number, eight were of a theoretical nature. 



The address of the president. Professor John B. 

 Watson, of Johns Hopkins University, was on 

 "The Place of the Conditioned-Reflex in Psy- 

 chology. ' ' The speaker explained the method 

 made famous by the Pawlow experiments as it has 

 been adapted for experimentation upon human 

 subjects in the Hopkins Laboratory, and discussed 

 the possibilities of the method as a means of ob- 

 taining important psychological results. A spe- 

 cial feature of the program was a discussion on 

 "The Relation of Psychology to Science, Phi- 

 losophy and Pedagogy in the Academic Curricu- 

 lum." The discussion dealt with the practical 

 relations which psychology must, or should, as- 

 sume towards the departments of instruction indi- 

 cated. At the conclusion of the set papers a lively 

 debate turned particularly upon the question of 

 psychology's relation to the training of teachers. 

 Professor C. H. Judd in his paper had contended 

 that psychology is not a necessary prerequisite to 

 the study of pedagogy. 



On the day following the close of the meetings 

 some forty members were the guests of Dr. Will- 

 iam Healy. The party inspected the Detention 

 Home of the Cook County Juvenile Court, lunched 

 at Hull House, and, during the afternoon, sat with 

 Judge Merritt W. Pinckney at a session of the 

 Juvenile Court. On Monday, January 3, a joint 

 session with Section VIII. (sub-section "Socio- 

 logical Medicine") of the Pan-American Scien- 

 tific Congress was held at the Raleigh Hotel, Wash- 

 ington, D. C. 



As officers for the current year, Professor Ray- 

 mond Dodge, of Wesleyan University, was elected 

 president, while Professors H. A. Carr, of the 

 University of Chicago, and Knight Dunlap, of the 

 Johns Hopkins University, were selected to suc- 

 ceed Professors J. W. Baird and Madison Bentley 

 on the council. An invitation extended by the 

 department of psychology to hold the next annual 

 meeting at Columbia University was accepted. 

 The meeting will occur during "Convocation 

 Week" in affiliation with the American Associa- 

 tion for the Advancement of Science. A resolu- 

 tion introduced by a number of past-presidents of 

 the association was voted, which provides for some 

 special observance of this, the twenty-fifth annual 

 meeting of the association. 



The tentative plan of conducting election to 

 office in the association which has been in opera- 

 tion for the past three years, will be continued 

 with certain modifications. Hereafter the com- 

 mittee having this matter in charge will function 



