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188             GEOLOGY OF NEW YORK CITY
Long Island (Professional Paper No. 44, United States Geological Survey, Washington, D. C, 1906).
STATEN ISLAND
Britton N. L.: On the Geology of Richmond County, New York (Annals New York Academy of Sciences, 1881).
Newland, D. H.: The Serpentines of Manhattan Island and Vi­cinity and their Accompanying Minerals (School of Mines Quarterly, Vol xxii).
In the Proceedings of the Natural Science Association of Staten Island from 1883 to 1905 (nine volumes) and in the subsequent Proceedings of the Staten Island Association of Arts and Sciences a great number of notes, observations, and determina­tions relative to the Geology of Staten Island will be found, along with interesting archaeological data.
Hollick, Arthur : The Occurrence and Origin of Amber in the Eastern United States (American Naturalist, 1905).