648 EPL O ATE 
10. Magmatic Differentiation in the Rocks of the Copper-bearing Series. 
By ALFRED C,. LANE, Houghton, Mich. 
11. The Volume Relations of Original and Secondary Minerals in Rocks. 
By Professor CHARLES R. VAN HIsE, Madison, Wis. 
12. Note on a Method of Stream Capture. By ALFRED C. LANE, Hough- 
ton, Mich. 
13. The Development of the Ohio River. By Professor WILLIAM G. 
TIGHT, Granville, O. 
14. Classification of Coastal Forms. By F. P. GULLIVER, Southboro, 
Mass. 
15. Dissection of the Ural Mountains, with lantern slides. By F. P. 
GULLIVER. 
16. Note on Monadnock. By F. P. GULLIVER. 
17. Spacing of Rivers with Reference to the Hypothesis of Base Leveling. 
By Professor N. S. SHALER, Cambridge, Mass. 
18. The Continental Divide in Nicaragua. By C. WILLARD HAYES, 
Washington, D. C. 
BEFORE THE GEOLOGICAL SECTION OF A. A. A. S. 
1. Outline Map of the Geology of Southern New England. By Pro- 
fessor B. K. EMERSON, Amherst, Mass. 
2. Basins in Glacial Lake Deltas. By Professor H. L. FAIRCHILD, 
Rochester, N. Y. 
3. An Exhibition of the Rare Gems and Minerals of Mt. Mica. By Dr. 
A. C. HAMLIN, Bangor, Me. 
4. The Hudson River Lobe of the Laurentide Ice-sheet. By Professor C. 
H. Hitcucock, Hanover, N. H. 
5. The Age of the Amboy Clay Series as Indicated by its Flora. By 
Professor ARTHUR HOLLICK, Columbia University, New York, N. Y. 
6. Some Feldspars in Serpentine, Southeastern Pennsylvania. By Pro- 
fessor T. C. HOPKINS, State College, Pa. 
7. The Region of the Causses in Southern France, with maps and stere- 
opticon views. By Dr. HoRACE C. Hovey, Newburyport, Mass. 
8. The Washington Limestone in Vermont. By Professor C. H. RICHARD- 
son, Hanover, N. H. 
g. Fluctuations of North American Glaciation shown by Interglacial Soils 
and Fossiliferous Deposits. By WARREN UPHAM, St. Paul, Minn. 
1o. Time of Erosion of the Upper Mississippi, Minnesota, and St. Croix 
Valleys. By WARREN UPHAM. 
11. Supposed ‘Corduroy Road” of Late Glacial Age at Amboy, O. By 
Professor G. FREDERICK WRIGHT, Oberlin, O. 
12. Changes in the Drainage System in the Vicinity of Lake Ontario dur- 
ng the Glacial Period. By Dr. M. A. VEEDER, Lyons, N. Y. 
