The volume documents field work of E. O. Ulrich in the north Texas copper deposits, 1905, 1906; Missouri, Arkansas, Texas. The notebook begins with a typed index listing location and page number. Contains notes on the Ozark series. Some entries are dated (August 17- October 5, 1905), and contain a combination of geological sections, elevations with notes, and narrative descriptions. Also includes notes describing presence of fossils.
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