ltwilliammowett: Mariner’s Compass, by Reverend Jonathan Fisher, from his Mathematics notebook

ltwilliammowett:

Mariner’s Compass, by Reverend Jonathan Fisher, from his Mathematics notebook, 1791

Fisher was not a seafarer, but he was an extremely educated and multi-talented man from Maine who was interested in everything, especially languages and mathematics. And since navigation also includes mathematics, he included it in his notebook.