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Long Island/ Manhattan/ Geology. MATHER, W. W./ SMITH, T. C. [New York?, 1842] Geological Map of Long & Staten Islands with the Environs of New York… 22 x 50 inches. Folding, lithographed map with fine, full original wash color; a few, confined toned areas, else fine condition. A beautiful, vibrantly colored example of the first map to provide a comprehensive picture of the geology of this region. The large primary map, of Long Island, highlights both geology and topography and indicates in yellow coloring the beach areas existing at the time. It also has excellent detail for Shelter Island and the eastern end of Long Island. A large inset of Manhattan provides a similar treatment. The Connecticut coast line, lower Westchester County, and northeastern New Jersey are also included. A table to the right provides a key with symbols for the various types soil and rock deposits found throughout the region. The map is especially well-detailed in showing roads, turnpikes and canals is all the areas depicted on the map. A partially completed Long Island Railroad can also be seen. Overall, Long Island is seen here at the beginning of its growth as a suburban population center. The map appeared in Mather’s Geology of New York, Part I. Mather was Professor of Natural History at Ohio University and served as Geologist of the First Geological District of New York for Governor William H. Seward. Smith was a surveyor who in 1860 would produce a mammoth wall map of New York State.
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