mixed material monographic eng 1 1 Manuscript volume (101 pages) of exercises and problems in geometry, trigonometry, and navigation kept by an unknown person. Includes "Journal of a Voyage from Boston to Madeira" (1813 September 23-1814 January 25), maps, and drawings. Open to research. Collection material in English. Mathematics Navigation Voyages and travels Boston (Mass.) Description and travel Madeira Islands Description and travel mm 82098640 Open to research. DLC 830110 20260227111718.0 mm 82098640