MICHIGAN ACADEMY OF SCIENCE. 
21 
ihi a. m., General Business Meeting - and Election of Officers, Museum 
Lecture Room. 
00 a. in., Sections which have not completed the reading of papers 
may meet again at this time. 
00 m.. Luncheon for Biologists. Botanical Laboratories. 
SECTION OF GEOLOGY AND GEOGRAPHY. 
R. C. ALLEN, CHAIRMAN. 
RUSSELL SEMINARY ROOM, MUSEUM BUILDING. 
Thursday, April 3rd, 9:00 a. m. 
Dr. Howard I>. Baker. Origin of Continental Forms, IV. 20 
minutes. 
Mr. R. A. Smith. Studies in Structure and Stratigraphy in the 
Saginaw Valley in Relation to Occurrences of Oil and Gas. 15 
minutes. 
Prof. E. C. Case. Climatic Variation in Permian Time as Recorded 
in Red Beds of Texas. 20 minutes. 
Prof. W. H. Sherzer. The Discovery of Illinoian Till in the Detroit 
River Region. 15 minutes. 
Mr. Frank B. Taylor. The History of Lake Erie in Post-Glacial 
Time. 20 minutes. 
Prof. E. H. Kraus. Further Studies on the Variation of the Angle 
of the Optic Axes, with Temperature. 30 minutes. 
2:00 p. m. 
Prof. W. F. Hunt. Vanadiferous Pyroxenes from Libby, Montana. 
15 minutes. 
Prof. Frank Carney. Some Pro Glacial Lake Shore Lines of the 
Bellevue Quadrangle, Ohio. 15 minutes. 
Mr. R. C. Allen. Some Problems in Stratigraphy and Correlation 
of the Pre-Cambrian Rocks of Michigan. 25 minutes. 
Mr. Frank Leverett. (a) Results of Levelling along the Algonquin 
Beach in the Northern Peninsula in 1912. 10 minutes. 
(b) Order of Development of Glacial Lakes in the Great 
Lakes Region. 20 minutes. 
(c) Centers of Dispersion and Probable Extent of the Kansan 
and Pre-Kansan Drifts. 15 minutes. 
O. W. Freeman. A Geographic Study of the Growth and Distri- 
bution of Population in Michigan. 10 minutes. 
Prof. E. H. Kraus and Mr. J. P. Goldsberry. The Chemical Com- 
position of Bornite. 15 minutes. 
Mr. R. E. Hore. The Porcupine Gold Deposits of Ontario. 15 
minutes. 
Ripple Marked Hurouian Quartzite at Nipissing Mine, Cobalt. 
Ontario. R. E. Hore. 
