The notebook documents Harry S. Ladd's work relating to geology in Iowa, Indiana, and Ohio, 1922 - 1924. The volume begins with an index, listing page number and subject: scientific discipline, picture locations, work, log, food account, money, correspondence, and lists. Geology notes describe details about thesis problem relating to Iowa, routes traveled, specimens collected, observations of terrain characteristics. Daily log provides a narrative describing work in the field, weather, and daily activities with friends and colleagues. Includes loose inserts of notes.
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