Bulletin.
Geological series.

Description

Viewability

Item Link Original Source
Full view   no.1-18 Oct.1913-June 1914 Pennsylvania State University
Full view   no.19-26 Oct.1914-June 1915 Pennsylvania State University
Full view   no.27-34 June 1915-Mar.1917 Pennsylvania State University
Full view   no.35-42 Feb.1918-Oct.1922 Pennsylvania State University
Full view   no.43-46 Mar.1924-Nov.1926 Pennsylvania State University
Full view   no.47-50 July 1927-1929 Pennsylvania State University
Limited (search only)   no.51-54 1930-1946 Pennsylvania State University