762 The American Naturalist. [August, 
PROCEEDINGS OF SCIENTIFIC SOCIETIES. 
The World’s Congress Auxiliary of the World’s Colum- 
bian Exposition of 1893.—ProvisionaL PRocRAM.—A Congress 
of Zoologists will be held, according to previous announcements of this 
committee, under the auspices of the World’s Congress Auxiliary at 
the Art Institute Building in Chicago, beginning August 28, and con- 
tinuing until the program of addresses and papers accepted is ex- 
hausted. 
The present stage of preparation for the sessions of this Congress is 
shown by the following provisional program, each person whose name * 
is placed against a topic on this list having accepted an invitation to 
prepare a principal address upon it. 
“The History and Evolution of American Zoology and the Status 
and Tendencies of Zoological Science in America.” Dr. G. Brown 
Goode, Director U. S. National Museum, Washington, D. C. 
* The Geographical Distribution of American Animals.” Mr. J. A. 
Allen, Curator of Departments of Mammalogy and Ornithology, 
American Museum of Natural History, New York. 
“The Effect of Glaciation and of the Glacial Period on the Present 
Fauna of America.” Mr. Samuel H. Scudder, Cambridge, Mass. 
“ Preliminary Account of the Formicide of the North American 
Fauna.” Professor C. Emery, University of Bologna, Bologna, Italy. 
* Lacustrine Zoology : Methods and General Results of Its Investi- 
gation.” Professor Dr. F. A. Forel, à la Faculté des Sciences de 
l'Université de Lausanne, Morges, Switzerland. 
“The Plankton of the Muskoko Lakes, Ontario.” Professor R. 
Ramsay Wright, Professor of Biology, University of Toronto, Canada. 
“ The Origin of the Subterranean Animals of America." Professor 
A. S. Packard, Professor of Zoology and Geology, Brown University, 
Providence, R. I. 
* The History and Special Features of the Economic Entomology of 
the United States.” Professor J. H. Comstock, Professor of Entomol- 
ogy and General Invertebrate Zoology, Cornell University, Ithaca, 
3. 
“The Special Problems of American Economic Entomology.” Dr. 
C. V. Riley, Chief of the Division of Entomology, U. S. Department 
of Agriculture, Washington, D. C. 
