Miscellaneous Intelligence. 



sixty-fourth year. On graduating at the West Point Military 

 Academy in 1846, be was assigned to the Corps of Topographical 

 Engineers. With the exception of two vears— from 1859 to 1861 

 as Professor of Mathematics at West Point, and active service 

 in the war from 1861 to April, 1865, his labors were chiefly in 

 connection with The department of I'niied States Km_nneers, and 

 they comprise many of the most important ami responsible works 

 carried forward by the department. The surveys of the Missis- 

 sippi and other rivers with reference to improvement of naviga- 

 tion, construction of breakwaters, bridging, and reclamation of 

 alluvial lands, became under him a source of important geological 

 discussions on the formation of sand bars, the relations of deposi- 

 tion to the flow of meeting streams, the changing courses of 

 rivers, and other related subjects. In the study of the Upper 

 Mississippi, the surveys were extended, in 1876, along the chief 



were the basis of a Report to the Chi, .1 gin, r< the following 

 year, and more tulh later, on the former discharge of Lake Winni- 

 peg through the 'Minnesota and Mississippi valleys. General 



.mission of Brevet Ma 



on the' Fossil Ma!,"!,f Xic'e'. 1 ' 1 '' 



