Annual report of the United States Geological Survey to the Secretary of the Interior . DALL.] SHUMAGIN ISLANDS. 809 On tlie western edge of Nagai similar rocks exist above the nieta-morphic schists and quartzites, but tbey are greatly altered and con-torted and cover but a small area in comparison with underlying is probable that part of the island of Sannakh is composed of similarstrata. John Dix, above mentioned, worked at getting out coal from the Ungabeds for some years. Messrs. Henry and Alexander Tibbey have since

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