A list and brief guide to the publications of the Pennsylvania Geological survey, 1874-1891
By: Comp. by William A. Ingham ...
Publisher: C. M. Busch
Published: 1896
Place of publication: Harrisburg
Language: eng
Format: [microform]
Subjects: Geology; Bibliography
Notes: Cover-title.

Date of survey has been corrected in ms. to read: 1874-1895.