""A Geological Hand Atlas Of The Sixty-Seven Counties Of Pennsylvania"" is a comprehensive guide to the geological features of Pennsylvania, written by J. Peter Lesley and first published in 1885. The book provides detailed information on the geological formations and mineral resources of each of the state's 67 counties, including maps, illustrations, and photographs of geological features such as rock formations, coal seams, and mineral deposits. Lesley's work is considered a seminal contribution to the study of geology in Pennsylvania, and continues to be a valuable resource for geologists, historians, and anyone interested in the state's natural history.Embodying The Results Of The Field Work Of The Survey, From 1874 To 1884.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.