rger version of that picture or map.

http://www.mcallen.lib.tx.us/books/circumna/ci_a.htm

Thanks. Also found on that website (go up one level) a

- Celestial Navigation - US Coast Guard pamphlet celnav.pdf - 11
Megabytes - revised 1988 - a complete, but short celstial navigation
presentation - about 170 pages long

- Seamans Secrets book 1 and book 2 a sixteenth century navigation
manual by John Davis.

- Law of Oleron one of the root documents in maritime law, codified in
the 1152, and other early maritime law codifications.