114 



SCIENCE 



[N. S. Vol. XXXIII. No. 838 



production of new species. The valuable feature 

 of the program was the forcible way in which the 

 opposing evidence and ideas of species formation 

 were presented by the several participants. Pro- 

 fessor Johannsen, of Copenhagen, who has so stri- 

 kingly expounded the principles of pure lines and 

 genotypes in the study of inheritauce, sent a most 

 suggestive paper to be read before the symposium. 



PUBLICATION OF PAPEBS 



The address of the president and all papers 

 read before the society will appear in series in 

 the forthcoming numbers of The American Nat- 

 uralist. 



The importance and scope of the papers read 

 are shown by the following titles: 



H. J. Webber, Cornell University, "What is a 

 Genotype or Biotype 1 " 



H. S. Jennings, Johns Hopkins University, 

 " Pure Lines in the Study of Genetics in Lower 

 Organisms." 



E. M. East, Bussey Institute, "The Genotype 

 Hypothesis and Hybridization." 



W. Johannsen, University of Copenhagen, "The 

 Genotype Conception of Heredity." 



Geo. H. Shull, Carnegie Institution, " The Geno- 

 types of Maize." 



T. H. Morgan, Columbia University, "The Ap- 

 plication of the Conception of Pure Lines to Sex- 

 limited Inheritance and to Sexual Dimorphism." 



J. Arthur Harris, Carnegie Institution, "The 

 Biometric Proof of the Pure Line Theory." 



R. A. Emerson, University of Nebraska, " Some 

 Genetic Correlations in Maize and their Relation 

 to the Formation of New Genotypes through 

 Hybridization." 



R. Pearl, Maine Agricultural Experiment Sta- 

 tion, "The Inheritance of Fecundity in the Do- 

 mestic Fowl." 



W. E. Castle, Harvard University, "Are Unit 

 Characters Subject to Modification by Selection?" 



F. B. Sumner, United States Fisheries, " Some 

 Effects of Temperature upon Growing Mice and 

 the Persistence of such Effects in a Subsequent 

 Generation." 



J. H. Gerould, Dartmouth College, "Poly- 

 morphism and Inheritance in Golias Philodice." 



S. Hatai, Wistar Institute, " On the Mendelian 

 Ratio and Blended Inheritance." 



M. F. Guyer, University of Cincinnati, " The 

 Nucleus and Cytoplasm in Inheritance." 



Many of the papers were followed by interest- 

 ing discussion, but unfortunately the program 

 proved to be too long to allow full time for this 

 ■desirable feature. 



Several valuable demonstrations were displayed 

 by members of the society. 



NEW MEMBEES 



The following were elected members of the 

 Naturalists: J. F. Abbot, Washington University; 

 R. A. Emerson, University of Nebraska; A. W. 

 Gilbert, Cornell University; L. Griggs, Dart- 

 mouth College; A. Gulick, University of Toronto; 

 J. A. Harris, Carnegie Institution; 8. Hatai, 

 Wistar Institute; H. E. Jordan, University of 

 Virginia; A. E. Lambert, Massachusetts State 

 Normal School; C. C. Little, Bussey Institute 

 H. H. Love, Cornell University; S. O. Mast 

 Goucher College; G. T. Moore, Washington Uni 

 versity; J. C. Phillips, Bussey Institute; R. E 

 Sheldon, University of Pittsburgh; A. F. Shull 

 Columbia University; W. J. Spillman, U. S. De^ 

 partment of Agriculture; H. B. Torrey, Univer' 

 sity of California ; G. Wagner, University of 

 Wisconsin; H. J. Webber, Cornell University; E. 

 N. Wentworth, Iowa State College; D. D. Whit- 

 ney, Wesleyan University. 



The following officers were elected for 1911: 



President — Professor H. S. Jennings, Johns 

 Hopkins University. 



Vice-president and Chairman of Eastern Branch 

 — Dr. Geo. H. Shull, Carnegie Institution. 



Treasurer — Professor E. M. East, Bussey Insti- 

 tute. 



Secretary — Professor C. R. Stockard, Cornell 

 University Medical School. 



Additional Members of Executive Committee — 

 Professor W. L. Tower, University of Chicago, and 

 Dr. B. M. Davis, Cambridge, Mass. 



Chas. R. Stockaed, 



THE AMERICAN CHEMICAL SOCIETY 

 The forty-third general meeting of the Amer- 

 ican Chemical Society, held at Minneapolis, De- 

 cember 28-31, was attended by 275 members and 

 guests and, like all recent meetings of the society, 

 was simply an echo of the general enthusiasm 

 that pervades its membership. 



Owing to the fact that over 175 papers were 

 presented, it was necessary to hold meetings of 

 all of the divisions and the meetings of the Divi- 

 sion of Agricultural and Food Chemistry, Division 

 of Fertilizer Chemistry, Division of Pharmaceu- 

 tical Chemistry, Division of Industrial Chemists 

 and Chemical Engineers, Division of Physical and 

 Inorganic Chemistry and Division of Organic 

 Chemistry, were well attended. 



A point especially worthy of note was the 



