Arctic America. Eastern sheet : on a scale of 1:10,000,000 / by Dr. F. Boas.Boas, Franz, 1858-1942[1887]"Corrected to July 1, 1887.""Science, Julu 27, 1887."Mounted on linen. Autographs of William H. Brewer on recto and verso. Title in manuscript on verso. Stamps and label of Library of the Department of Geology, Yale University.Relief shown by shading.cartographic