482 — Canadian Record af Science. 
prominence being placed on the Mining Department build- 
ing. 
Thursday, August 24. 
The General Geology of Venezuela—Dr. Adolph Ernst, 
special delegate from Venezuela so the Columbian Hx- 
position. 
Pre-Cambrian Rocks of Wales—Dr. Henry Hicks, Lon- 
don, England. 
The Classification of the Rock Formations of Canada, 
with special reference to the Paleozoic Era—Dr. Henry M. 
Ami, Geological Survey of Canada. 
The Cordilleran Mesozoic Revolution—Dr. A. C. Lawson, 
University of California. 
The Oil Shales of the Scottish Carboniferous System— 
Henry M. Cadell, late of the Geological Survey, Scotland. 
The Pre-Paleozoic Floor in the Northwestern States— 
Prof. C. W. Hall, University of Minnesota. 
Distribution of Pre-Cambrian Volcanic Rocks along the 
Hastern Border of the United States and Canada—Prof.: 
George H. Williams, Johns Hopkins University. 
They were followed by a special discusston on the ques- 
tion: “Are there any Natural Geological Divisions of 
World-wide Extent ?” Introduced by Prof. J. Le Conte. 
Friday, 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, Cam- 
bridge, England. 
Wave like Progress of an Epeirogenic Uplift—Warren 
Upham, Geological Survey of Minnesota. 
Zur Nereiten Frage—Dr H. B. Geinitz, Dresden. 
Genetic Classification of Geology—W. J. McGee, Bureau 
of Ethnology. 
Precious Stones and their Geological Occurrence—Dr. 
George F. Kunz. 
