The marine sextant

Bowditch's Useful Tables

Useful Tables from Bowditch's Practical Navigator

Bowditch for yachtsmen

American practical navigator

Improved Practical Navigator : Containing All Necessary Instructions for Determining the Latitude by Various Methods, and for Ascertaining the Longitude by Lunar Observations

Useful Tables

Useful Tables from the American Practical Navigator (bowditch)

The Complete Nautical Dictionary

Memoir of Nathaniel Bowditch (trade)

Memoir of Nathaniel Bowditch