1032 The American Naturalist. [November, 
August 25.—Huronian versus Algonkian, Dr. A. R. C. Selwyn, Geo- 
logical Survey of Canada. On the Migration of Material during the 
Metamorphism of Rock Masses, Alfred Harker, St. John’s College, 
Cambridge, England. Wave-like Progress of an Epeirogenic Uplift, 
Warren Upham, Geological Survey of Minnesota. Eruptive Phenom- 
ena of Brazil, Dr. O. A. Derby, Geological Survey of Sao Paulo. 
Genetic Classification of Geology, W J McGee, Bureau of Ethnology. 
Precious Stones and Their Geological Occurrence, Dr. George F. Kunz. 
The Extent and Lapse of Time Represented by Unconformities, Pro- 
fessor C. R. Van Hise, U.S. Geological Survey. The Phylogeny of 
Plants, Professor Lester F. Ward, U. S. Geological Survey. The 
Phylogeny of the Classes of Vertebrates, Dr. O. Jækel, Berlin, Germany. 
Restoration of Clidastes (illustrated), Professor S. W. Williston, 
University of Kansas. 
August 26.—Glacial Succession in the British Isles and Northern 
Europe, Dr. James Geikie, Geological Survey of Scotland. Glacial 
ciim in Sweden, Hjalmar Lundbohm, Geological Survey of 
Sweden. he Succession of the Glacial Deposits of Canada, Dr. 
Robert s Canadian Geological Survey. Glacial Succession in the 
United States, Dr. T. C. Chamberlin, University of Chicago. Pleisto- 
cene Climatic Changes, Warren Upham, Geological Survey of Minne- 
sota. Evidences of the Diversity of the Older Drift in Northwestern 
Illinois, Frank Leverett, U. S. Geological Survey. 
. THE Coneress on ZooLoav.—August 28.—Stephen A. Forbes, 
Chairman, Oliver S. Westcott, Vice-Chairman, Edward A. Birge, Secre- 
tary, George W. Peckham, William A. Locy, Edward G. Howe, B. F. 
Quimby, Committee of the World's Congress Auxiliary on a Congress 
on Zoology. 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. Seudder, Cambridge, Mass. Preliminary Account of 
the Formicid: of the North American Fauna, Professor C. Emery, 
University of Bologna, Bologna, Italy. 
August 29.—Lacustrine Zoology: Methods and General Results of 
Its Investigation, Professor Dr. F. A. Forel, University of Lausanne, 
Morges, Switzerland. The Plankton of the Muskoka Lakes, Ontario, 
