Notes regarding celestial navigation
- MS-2-726, Box 16, Folder D36
- Item
- [after 1780]
Part of James Dinwiddie fonds
Item is a notebook kept by James Dinwiddie in which he wrote his observations and calculations about celestial navigation.
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Archival Description 
- MS-2-726, Box 17, Folder E20
- Item
- [1800?]
Part of James Dinwiddie fonds
Item is a notebook containing notes about logarithms, addition and subtraction, and example calculations.