512 



SCIENCE 



[N. S. Vol. XXVIII. No. 720 



tive organs of plants, the structure and cross- 

 pollination of flowers and the dispersal of 

 fruits and seeds. Nest season other squares 

 ■will be planted with a collection of economic 

 plants. The greenhouse and laboratory are 

 completed and will be occupied during the 

 year by students doing research or laboratory 

 work in plant physiology. 



It is stated in yafure that to mark the 

 completion of the fiftieth year of the existence 

 of the Geologists' Association, it is proposed 

 to issue a volume dealing with the geology of 

 the districts of England and Wales visited by 

 the association since its foundation. The 

 work, which will be edited by Messrs. H. W. 

 Monekton and E,. S. Herries, will be ilLus- 

 trated by maps and sections, and be ready for 

 publication, it is hoped, before the end of the 

 present year. Orders for copies should be 

 sent to the secretary of the association. 



The annual meeting of the Xew England 

 Geological Excursion will be on L<5ng Island 

 on October 24 to study the terminal moraine 

 and other glacial and geological features. The 

 party will start from 2vew Haven, where ar- 

 rangements for the transportation of the party 

 will be made by the Tale geological faculty. 

 Details concerning the itinerary, expenses, 

 leaders, etc., will be sent to members of the 

 organization in a few days. Geologists, not 

 members, are invited and may obtain infor- 

 mation by writing to the secretary. Professor 

 H. F. Cleland, TTilliams College, WiUiams- 

 town, Mass. 



We learn from the British Medical Journ-al 

 that Sir David Bruce, who was director of 

 the Eoyal Society's commission in 1903, has 

 left England on his second visit to Uganda, 

 where he wiU continue his investigation as 

 to the pathology of sleeping sickness. The 

 expedition has been organized at the request 

 of the Colonial Office, and the treasury is 

 finding the necessary funds. Sir David 

 Bruce wall be accompanied by two other 

 officers of the Eoyal Army Medical Corps, 

 Captain H. E. Bateman and Captain A. E. 

 Hamerton. Lady Bruce, who has accom- 

 panied her husband on similar missions in 

 Uganda, Zululand and Malta, is a member of 

 the new commission, and will take an active 



part in the investigations. The headquarters 

 of the work will be selected two miles from 

 the lake shore in a wild and depopulated 

 region in the province of Chagwe. There the 

 Uganda government has been preparing a 

 laboratory and station for the purposes of the 

 mission. It is expected that the work of the 

 com mission will occupy about nine months. 



The twenty-ninth free lecture course of the 

 Field Museum of 2^atural History will be 

 given on Saturday afternoons at three o'clock, 

 as follows : 



October 3 — " Through the Cataracts of the Xile," 

 by Professor James H. Breasted, the University 

 of Chicago. 

 October 10 — " A Xaturalist in Venezuela," by Dr. 

 X. Dearborn, assistant curator of ornithology. 

 Field Museum of Xatural History. 

 October 17 — "" The Great American Deserts as seen 

 in New ilexieo and Sonora," by Professor 

 Thomas H. Maebride, the State University of 

 Iowa. 

 October 24 — " The Geology and Scenery of the 

 Pipestone Eegion," by Professor Samuel Calvin, 

 the State University of Iowa. 

 October 31 — '" Among the Birds in Costa Rica and 

 Panama," by Mr. J. F. Perry, assistant, division 

 of ornithology. Field Museiun of Xatural His- 

 tory. 

 Xovember 7 — " Life of a Lake in Summer," by 

 Dr. Edward A. Birge, University of Wisconsin. 

 Xovember li — " The Heraldry of the Indians," by 

 Mr. James Mooney, L'nited States Bureau of 

 Ethnology. 

 Xovember 21 — "The Glaciers of the St. Elias 

 Kegion, Alaska," by Professor E. S. Tarr, Cor- 

 nell University. 

 Xovember 2S — " Holland," by Professor Jam^es 

 Howard Gore, the George Washington Univer- 

 sity. 



We learn from Nature that an International 

 Rubber Exhibition was opened in London on 

 September 14. The exhibits consisted wholly 

 of objects of interest to members of the rubber 

 and allied trades, and comprised illustrations 

 of the growth of the com m odity and examples 

 of the machiaery employed in its manipula- 

 tion. Eubber trees in all stages of their 

 growth were shown, together with the raw 

 material obtained from them, and the varied 

 forms into which it is manufactured. Dem- 

 onstrations were given in a laboratory, and 



