December 21, 1906.] 



SCIENCE. 



827 



Programs of the sections and societies in their 

 respective rooms, in the main as given above, 2 or 

 2:30 P.M. 



Section of Physiology and Experimental Medi- 

 cine. Discussion on ' Protozoa as Factors in the 

 Diseases of Animals and Plants.' College of Phy- 

 sicians and Surgeons, 3:30 P.M. 



Meeting of the council of the American Chem- 

 ical Society, 3:30 P.M. 



Address of the retiring president of the Ameri- 

 can Association, Dr. C. M. Woodward, on ' Science 

 in Education,' Horace Mann Hall, Teachers Col- 

 lege, Columbia University (Broadway and 120tli 

 Street), 8 P.M. 



Reception by the president of Columbia Uni- 

 versity. Earl Hall, 9 to 11 P.M. 



Smoker. Faculty Club, Columbia University, 

 9.30 P.M. 



Friday, Deeemher 28. 



Registration, validation of railway tickets, etc. 

 Earl Hall. 



Council of the American Association. Trustees 

 room, 9 a.m. 



Meetings of the sections and societies in their 

 respective rooms, 10 a.m. and earlier. 



Joint meeting of the Section of Mathematics 

 and Astronomy, the American Mathematical So- 

 ciety, the Astronomical and Astrophysical Society 

 of America. Room 405, Schermerhorn Hall, 10 

 a.m. 



Joint meeting of the Section of Physiology and 

 Experimental Medicine and the American Bac- 

 teriological Society. Rockefeller Institute for 

 Experimental Medicine (66th Street and Avenue 

 A), 10 a.m. 



Geological Society of America. American Mu- 

 seum of Natural History, 10 a.m. 



Luncheon, 12 to 2 p.m. 



Luncheon. The Schultz Mineral Water Com- 

 pany ( 440 First Avenue ) , for the American Chem- 

 ical Society and Section C, followed by excursions. 



Address of Vice-president Henry Crew, North- 

 western University, on ' Fact and theory in Spec- 

 troscopy.' Vice-president Erwin F. Smith, U. S. 

 Department of Agriculture, on ' Problems of Plant 

 Physiology.' Vice-president Irving Fisher, Yale 

 University, before the Section of Social and Eco- 

 nomic Science, 2:30 p.m. 



The sections and societies will meet at 2 or 2 : 30 

 p.m. in their respective rooms. 



Meeting of the American Society of Naturalists. 

 305 Schermerhorn Hall, 2:30 p.m., followed by a 

 discussion at 3 : 30 on ' The Biological Significance 

 and Control of Sex,' by Dr. A. F. Blakeslee, Har- 

 vard University; Professor F. R. Lillie, Univer- 

 sity of Chicago; W. T. Swingle, U. S. Depart- 



ment of Agriculture; Professor E. B. Wilson^ 

 Columbia University; Professor R. A. Harper,. 

 University of Wisconsin; Professor T. H. Morgan, 

 Columbia University; J. B. Nichols, Washington. 



Address by President William James before the 

 American Philosophical Association on ' Surplus 

 Stores of Energy.' 



Dinners. The American Society of Naturalists. 

 University Commons, Columbia University. The 

 American Chemical Society, the American Geo- 

 logical Society of America and other societies and 

 groups, places to be designated, 6:30 or later. 



Address of Vice-president Davenport, on ' Co- 

 operation in Science,' before the American So- 

 ciety of Naturalists. 8 p.m. 



Smoker of the American Society of Naturalists.. 

 Faculty Club, 9 p.m. Other smokers and informal 

 meetings have also been arranged. 



Saturday, December 29. 



Registration, etc. Earl Hall. 



Council of the American Association. Trustees 

 room, 9 a.m. 



Meetings of the societies and sections. 10 a.m. 

 and earlier. 



Botanical Society of America. Botanical Gar- 

 den, morning and afternoon. 



Addresses. Professor C. F. Chandler, Columbia 

 University, on ' The Electrical Industries of 

 Niagara Falls.' Dr. John M. Clarke, of the Sci- 

 ence Division, New York State Educational De- 

 partment, on ' The Effort to Save Niagara.' 

 Townsend Harris Hall, City College (138th Street 

 and Amsterdam Avenue), 12 o'clock, followed by 

 a complimentary luncheon in the gymnasium and 

 an inspection of the new buildings. 



Unveiling of ten marble busts of American men 

 of science with addresses. American Museum of 

 Natural History, 3 p.m. 



Reception by the trustees of the American Mu- 

 seum of Natural History and the council of the 

 New York Academy of Sciences; exhibit of scien- 

 tific progress by the New York Academy of Sci- 

 ences with demonstrations and short addresses. 

 American Museum of Natural History, 8 P.M. 

 The exhibit will also be open on Friday afternoon 

 and evening and on Saturday afternoon. 



Address of the president of the American 

 Chemical Society, Dr. W. F. Hillebrand, U. S. 

 Geological Survey, on 'The Present and Future 

 of the American Chemical Society,' Chemists Club- 

 (108 West 55th Street), 8 p.m. 



Smoker. Chemists Club, 9 p.m. 



Monday, December 31. 

 Registration, etc. Earl Hall. 



