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SCIENCE 



[N. S. Vol. XLIV. No. 1147 



Section L — Education. — Vice-president, Dr. L. P. 

 Ayres, The Russell Sage Foundation; secretary, 

 Dr. Stuart A. Courtis, Detroit, Mich. 



Section M — Agriculture. — Vice-president, Dr. W. 

 H. Jordan, director of the New York Agricultural 

 Experiment Station; secretary, Dr. E. W. Allen, 

 TJ. S. Department of Agriculture, "Washington, 

 D. C. 



American Mathematical Society. — December 

 27 and 28. President, Professor Ernest W. Brown, 

 Yale University; secretary, Professor P. N. Cole, 

 501 West 116th St., New York, N. Y. 



Mathematical Association op America.— De- 

 cember 28, 29 and 30. President, Professor E. R. 

 Hedrick, University of Missouri; secretary, W. D. 

 Cairns, 5465 Greenwood Ave., Chicago, 111. 



American Astronomical Society. — December 

 26 to 30. President, Dr. E. C. Pickering, Harvard 

 College Observatory; secretary, Dr. Philip Pox, 

 Dearborn Observatory, Evanston, 111. 



American Federation op Teachers or the 

 Mathematical and the Natural Sciences. — 

 Council meeting. Secretary, W. A. Hedrick, Cen- 

 tral High School, Washington, D. C. 



American Physical Society. — December 26 to 

 30. President, Professor E. A. Millikan, University 

 of Chicago; secretary, Professor Alfred D. Cole, 

 Ohio State University, Columbus, Ohio. 



Optical Society op America. — December 28. 

 President, Dr. Perley G. Nutting, 3 Kodak Park, 

 Rochester, N. Y. 



American Chemical Society. — President, Dr. 

 Charles H. Herty, New York City; secretary, Dr. 

 C. L. Parsons, U. S. Bureau of Mines, Washing- 

 ton, D. C. 



American Electrochemical Society. — Chair- 

 man, New York Section, Dr. Colin 'G. Fink, Edison 

 Lamp Works, Harrison, N. J. 



Society for the Promotion op Engineering 

 Education. — President, Professor H. S. Jacoby, 

 Columbia University; secretary, Professor F. L. 

 Bishop, University of Pittsburgh, Pittsburgh, Pa. 



Illuminating Engineering Society. — Presi- 

 dent, W. J. Serrill; chairman, Committee on Reci- 

 procal Relations, Clarence L. Law, Irving Place 

 and 15th St., New York, N. Y. 



Association op American Geographers. — De- 

 cember 28 to 30. President, Dr. Mark Jefferson, 

 Michigan State Normal College, Ypsilanti, Mich.; 

 secretary, Professor Isaiah Bowman, Yale Univer- 

 sity, New Haven, Conn. 



American Alpine Club. — December 30. Presi- 

 dent, H. G. Bryant; secretary, Howard Palmer, 

 New London, Conn. 



American Society op Naturalists. — December 

 29. President, Dr. Raymond Pearl, Maine Agri- 

 cultural Experiment Station; secretary, Professor 

 Bradley M. Davis, University of Pennsylvania, 

 Philadelphia, Pa. 



American Society op Zoologists. — December 



27, 28 and 29. President, Professor D. H. Ten- 

 nent, Bryn Mawr College; secretary, Professor 

 Caswell Grave, Johns Hopkins University, Balti- 

 more, Md. 



Entomological Society op America. — Decem- 

 ber 26 and 27. President, Dr. E. P. Felt; secre- 

 tary, J. M. Aldrich, West Lafayette, Ind. 



American Association op Economic Entomol- 

 ogists. — December 28, 29 and 30. President, Dr. 

 C. Gordon Hewitt, Department of Agriculture, 

 Ottawa, Canada; secretary, Albert F. Burgess, Mel- 

 rose Highlands, Mass. 



American Genetic Association.- — December 26, 



27 and 28. President, David Fairchild, U. S. De- 

 partment of Agriculture; secretary, George M. 

 Rommel, 511 11th St., Washington, D. C. 



Eugenics Research Association. — President, 

 Professor Adolf Meyer, The Johns Hopkins Uni- 

 versity; secretary, William F. Blades, 191 Haven 

 Ave., New York, N. Y. 



Ecological Society op America. — December 27, 



28 and 29. President, Professor V. E. Shelford, 

 University of Illinois; secretary, Forrest Shreve, 

 Desert Botanical Laboratory, Tucson, Ariz. 



Botanical Society op America. — December 27 

 to 30. President, Professor R. A. Harper, Colum- 

 bia University; secretary, Dr. H. H. Bartlett, Uni- 

 versity of Michigan, Ann Arbor, Mich. 



American Phytopathological Society. — De- 

 cember 27 to 30. President, Dr. Erwin F. Smith, 

 U. S. Department of Agriculture; secretary, Dr. 

 C. L. Shear, U. S. Department of Agriculture, 

 Washington, D. C. 



American Fern Society. — December 29. Pres- 

 ident, Dr. C. H. Bissell, Michigan Agricultural Col- 

 lege; secretary, C. A. Weatherby, 920 Main St., 

 East Hartford, Conn. 



SuLLrvANT Moss Society. — December 29. Presi- 

 dent, Mrs. Elizabeth G. Britto'n, N. Y. Botanical 

 Garden; secretary, Edward B. Chamberlain, 18 

 West 89th St., New York, N. Y. 



Society op Horticultural Science. — December 



28, 29. Secretary, C. P. Close, U. S. Department 

 of Agriculture, Washington, D. C. 



