Letter to Professor George H. Cook : Bullett Building, Philadelphia : ALS, 1888 Nov. 27.
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The author may possibly be George Hammell Cook, a professor of chemistry and natural science at Rugers College and state geologist for New Jersey; author of "The geology of New Jersey." From the description of G.H. Cook letter, no date. (University of Virginia). WorldCat record id: 70918770 ...