THE PROGRESS OF SCIENCE 



205 



of the probable meeting of the asso- 

 ciation in Honolulu eighteen niontlis 

 hence; by Professor Wilson, of Colum- 

 bia University, describing the classic 

 researches made by him and others on 

 the determination and heredity of sex; 

 by Dr. Brown, U. S. Commissioner of 

 Education, who spoke with authority 

 on world standards of education ; by 

 Professor Penck, of Berlin, eminent as 

 a geologist and geographer, who lec- 

 tured on man, climate and soil, and by 

 Professor Poulton, of Oxford, the lead- 

 ing authority on natural selection, 



De. Louis Kahlenbbrg, 

 Professor of Phj'sical Chemistry in the 

 T'niversity of Wisconsin, Vice-presi- 

 dent for the Section of Chemistry. 



whose subject was mimicry in the but- 

 terflies of North America. 



In addition to the great niunber of 

 discussions and special sessions, two 

 memorial meetings were of striking 

 signlfv-ance. The former students and 

 colleagues of William Keith Brooks, 

 professor at the Johns Hopkins Uni- 

 versity from its establishment in 187fi 

 to his death, two months ago, met to 

 do honor to his memory. No fewer 

 than sixty joined in a dinner on the 

 last day of the old year, and their 

 numbers and standing not less than 



Dr. C. J. Keyser. 



Adrian Professor of Mathematics in 



Colviml>ia University, Vice-president 



for the Section of Matliematics 



and Astronomy. 



their words bore witness to the great 

 influence exerted by Brooks on the 

 development of the biological sciences 

 throughout the country. The last day 

 of the meeting and the first day of the 

 new vear was devoted to a Darwin 



Dr. C.\rl E. Guthe, 



Professor of Physics in the University 



of Iowa, Vice-president for the 



Section of Physics. 



