Preliminary geological map of Connecticut /
Gregory, Herbert E. 1869-1952.
Preliminary geological map of Connecticut / by Herbert Ernest Gregory and Henry Hollister Robinson. - Hartford : Hartford Press, The Case, Lockwood & Brainard Company, 1907. - 39 p. : ill., fold. map (in pocket) ; 23 cm.
At head of title: State of Connecticut. Public Document No. 47
gs 07000681
Geology--Connecticut.
QE93 / .G82
Preliminary geological map of Connecticut / by Herbert Ernest Gregory and Henry Hollister Robinson. - Hartford : Hartford Press, The Case, Lockwood & Brainard Company, 1907. - 39 p. : ill., fold. map (in pocket) ; 23 cm.
At head of title: State of Connecticut. Public Document No. 47
gs 07000681
Geology--Connecticut.
QE93 / .G82