Transactions of the Geological Society of Pennsylvania
Publisher: John I. Kay & Co
Published: 1835
Number of pages: 319
Notes: Part 1 has separate t.-p., with imprint date 1834; it appears to be a second edition of that part,differing slightly from the other edition in typography, arrangement, etc., and accompanied by an a ppendix entitled: Observations on the geology of York County, Pennsylvania, by Thos. G. Clemson, read October 29, 1834. (13 p.)