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SCIENCE 



[N. S. Vol. LIII. No. 1361 



for membership, and tli'ose candidates wlio are 

 approved by the committee may be elected to 

 membership in the society by a majority ef the 

 members present at any meeting of the society. A 

 nomination for membersihip in the society shall 

 remain in the hands of the executive committee 

 for at least one year before action is taken upon 

 it. The names of candidates not elected to mem- 

 bership within three years of the date of consid- 

 eration shall be removed from the list of nominees 

 unless renominated. 



Professor H. H. Bartlett, University of Michi- 

 gan, was elected to represent the society on the 

 board of control of Botanical Abstracts, to succceed 

 Professor E. M. East. Dr. J. Arthur Harris is the 

 other representative of the society on the board 

 of control. 



Professor Leon J. Cole was elected to member- 

 sMp for a term of five years, in the advisory com- 

 mittee of (the society, related to the committee on 

 cooperation and coordination of the Division of 

 Biology and Agriculture of the National Eesearch 

 Coiincil, to succeed Dr. A. G. Mayor. The other 

 members of this advisory committee are Bradley 

 M. Davis (4 years, chairman), Ross G. Harrison 

 (3 years), George H. Shull (2 years), and H. S. 

 Jennings (1 year). 



The report of the committee on genetical form 

 and nomenelaiture, authorized at the 1919 meeting 

 of the society, was read, in the absence of the 

 chairman, Dr. C. C. Little, by Dr. Sewall "Wright. 

 The society voted to continue the committee and 

 to request it to publish the report in Science, but 

 deferred discussion of and action upon the report 

 to a later meeting. 



The foUovping persons, recommended to the so- 

 ciety by the executive committee for election to 

 membership, were duly elected: William H. F. 

 Addison, Roy E. Clausen, Theodore D. A. Cock- 

 ereU, Frederick V. Coville, George W. Crile, John 

 W. Gowen, A. L. Hagedoorn, Duncan Starr John- 

 son, William Allen Orton, Charles Vancouver 

 Piper, Harold H. Plough, Brayton Howard Ran- 

 som, Mary B. Stark, George L. Streeter, Walter T. 

 Swingle. 



The nominating committee presented candidates 

 for vacancies in the oflS.ces of president, vice-presi- 

 dent and treasurer, who were unanimously elected 

 by the society. Accordingly, the officera for the 

 year 1921 aie aa follows : 



President: Professor Bradley M. Davis, Univer- 

 sity of Michigan. 



Vice-president: Professor Henry E. Crampton, 

 Columbia University. 



Secretary: Professor A. Franklin Shull, Univer- 

 sity of Michigan. 



Treasurer: Dr. J. Arthur Harris, Carnegie In- 

 stitution of Washington. 



Additional memhers of executive committee iy 

 virtue of previous office: Professor W. E. Castle, 

 Harvard University; Professor E. M. East, Har- 

 vard University; Dr. Jacques Loeb, Rockefeller 

 Institute for Medical Research. 



The annual dinner of the society was held at the 

 Hotel Sherman, at 7 o'clock, December 30, with 

 one hundred and thirty-nine in attendance. In 

 the absence of the president, Dr. Jacques Loeb, 

 the after-dinner addresses were made by two 

 charter members. Professors William North Rice 

 and J. Sterling Kingsley, who narrated the story 

 of the foundation and early days of the society. 



The program of papers, which occupied Thurs- 

 day and Friday, December 30 and 31, was as fol- 

 lows: 



Thursday morning: 

 The analysis of a continuously varying character 



in the wasp Hadrohracon: P. W. Whiting. 

 Fluctuations of sampling in a population showing 



linTcage: J. A. Detlefsen. 

 Linkage between flower color and stem color in 



(Enothera: George H. Shull. (Read by title.) 

 The inheritance and linkage relation of shrunken 



endosperm in maize: C. B. Hutchison (intro- 

 duced by R. A. Emerson). 

 Relative frequency of crossing-over in microspore 



and megaspore development in maize: R. A. 



Emeeson and C. B. Hutchison. 

 Types of mutation and their possible significance 



in evolution: A. F. Blakeslee. 

 Linkage of tunicate ear and sugary endosperm and 



their genetic relations to other maize characters : 



W. H. Etster (introduced by R. A. Emerson). 

 A case of maternal inheritance in maize: E. G. 



Anderson and L. F. Randolph (introduced by 



R. A. Emerson). 



I. Genetic aspects (Dr. Anderson). II. Cyto- 



logical relations (Mr. Randolph). 



Thursday afternoon: Symposium on General 



On the photochemistry of the reactions of animals 

 to light: Selig Hecht. 



The influence of internal secretion on the develop- 

 ment and growth of amphibians : E. Uhlenhuth. 



The role of tlie hydrogen ion concentration in life 

 phenomena: Wm. Mansfield Clark. 



The mechanism of injury and recovery of the cell: 

 W. J. V. Osterhout. 



Enzyme action as exemplified by pepsin digestion: 

 John H. Northrop. 



