Emmons, E. (1842). Geology of New-York. Part II. Comprising the survey of the second geological district. New York State Geological Survey, Albany, 429 pp., available online athttps://books.google.de/books?id=oW4_AAAAcAAJ page(s): 392 [details]
original descriptionEmmons, E. (1842). Geology of New-York. Part II. Comprising the survey of the second geological district. New York State Geological Survey, Albany, 429 pp., available online athttps://books.google.de/books?id=oW4_AAAAcAAJ page(s): 392 [details]