David Adamsen Nautical Notebook
Includes handwritten notes pertaining to the calculation of longitude and position at sea via various methods; also a brief log of the coastal voyage of the yacht Rheingold from San Pedro to San Diego in 1917 (pp. 25-27); examples of mercartor sailing from the west coast of the US to various Pacific ports (pp. 36-37); a pencil sketch of the steamer Melville Dollar; notes on pilotage in San Francisco Bay; notes related to the duties of Master; drafts of letter requesting master's license.
The donor also included a typewritten sheet with Adamsen's biographical details.