Summary document that covers the work in precise leveling done at Camp Columbia, Morris, Conn., during the session of 1916, namely the line from the U.S.G.S. bench mark at Dover Plains, N.Y. to Camp Columbia and an extension of this line to the Morris Dam of the Waterbury Waterworks, a total distance of about 43 miles.

A report which was the result of a three week study of the Town of Litchfield, CT, carried out in July 1948 by a group of twenty students and four staff members of Columbia University.