TY  - GEN
TI  - Navigation exercise book,
KW  - Mathematics
KW  - Navigation
KW  - Voyages and travels
KW  - Boston (Mass.)
KW  - Description and travel
KW  - Madeira Islands
N1  - Open to research
N2  - 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
ER  -