A few facts regarding the Geological survey of Pennsylvania
Subtitle: exposing the erroneous statements and claims of J. P. Lesley, secretary of the American iron association.
Series: American culture series -- 385.9.
Publisher: Collins, Printer
Published: 1859
Place of publication: Philadelphia
Language: eng
Number of pages: 22
Subjects: Lesley, J. P. -- 1819-1903; Pennsylvania -- Geological surveys
Notes: In vindication of Henry D. Rogers, state geologist 1836-1858.

Signed: An assistant.

Microfilm. Ann Arbor, Mich., University Microfilms [n.d.] (American culture series, Reel 385.9)