Proceedings 267 



same subject published in the American Geologist for Mat', 1905, vol. 

 XXXV, pp. 266-291.) 



273d Meeting, March 7, 1905. 



Twelve persons present; President Hall in the chair. 

 Program: An informal account, aided by charts and 

 maps, of the work of the U. S. and Canadian Boundary Sur- 

 vey in the Rocky Mountains, was given by Mr. F. A. Camp, 

 who was in charge of one of the survey parties in 1904. 



Pres. Hall then showed a fine collection of photographs 

 to illustrate the Geography and Geology of the Canadian 

 Rockies. Much discussion. 



274th Meeting, May 9, 1905. 



Twenty present; President Hall presiding. 



Program : Explorations of V'erendrye and his sons, in 

 connection with the History and Geography of Northern 

 Minnesota, by Warren Upham, Secretary of the Minnesota 

 Historical Society. (See paper K.) 



An informal report was made by Harlow Gale of a Case 

 of Multiple Personality by Dr. Albert Wilson in Vol. 18, pp. 

 352-418, of the Proceedings of the Society for Psychical Re- 

 search. Some of the wider psychological bearings of the case 

 were presented and discussed. 



275th Meeting, October 10, 1905. 



The four members present on this stormy night ex- 

 changed most pleasantly and profitably their experiences in 

 summer scientific work and reading. Prof. Winchell showed 

 two of his own photographs of the Willamette meteorite at 

 the Lewis & Clark Exposition at Portland. This largest me- 

 teorite in the United States is 4 ft. in height through its cone 

 shaps, 10 ft. in diameter in its base, and weighs towards 15 

 tons. The peculiar drill-like perforations about its base seem 

 to be due to air friction, while the sponge-like structure of its 

 bottom, which was towards the surface and not much cov- 

 ered, Prof. Winchell thought due to the decomposition of some 

 other mineral substances in the iron. 



Dr. Sardeson reported having found some specimens of 

 Porocrinus, and in fact he had recognized a zone at various 

 points about Minneapolis identical with that about Toronto 



