Proceedings. 29 



gabbro of that formation cuts through and even encloses large blocks of 

 the quartzite. The rock is not a quartzite,but essentially an aggregation of 

 quartz, olivine, augite hornblende and magnetita. In the Birch lake 

 region some of the so-called Pewabic Quartzite has been traced into the 

 iron bearing member of the Animike. These results differ slightly from 

 those of Professor W. S. Bayley, published in the 19th Annual Report of 

 the Geological and Natural History Survey of Minnesota, pp. 193-210. 



A Second Warning ; Dr. Albert Schneider. 



The author continued his studies on the spread of Asiatic cholera 

 begun sometime ago. The Academy's attention had been once before called 

 to the subject. (See Minutes for November, 1892, p. 308.) 



Minneapolis, May i6, 1893. 



The fourth and last lecture in the special lecture course 

 was given by C. W. Hall. 



Subject : The Formation and Deformation of Minnestoa 

 lakes. 



Thirty-eight persons were present. 



June 6, 1893. 



Commencement week at the University prevented at- 

 tendance of many members, consequently no quorum. 



September 7, 1893. 



A special meeting of the Academy was held in the Public 

 Library. President Osborn in the chair. 



Eight members present. 



The objects of the meeting were : 1. That the Academy 

 be informed of the amount and condition of the material 

 gathered by the Menage Scientific Expedition to the 

 Philippine Islands ; 2. That a statement might be made ol 

 the progress of taxidermic work on said material; 3. That 

 the financial condition of the Academy might be stated; 

 and 4. That such action might be taken as should be 

 thought wise in view of the present condition of the 

 Academy's work. 



1. Secretary Hall gave a brief statement concerning the condition of 

 the material thus far received from the Menage Expedition to the Philippine 

 Islands and what had lieen done towards preparing the material for 

 permanent preservation. 



