Chart of the Atlantic Ocean.
from The new American practical navigator; : being an epitome of navigation; containing all the tables necessary to be used with the Nautical Almanac, in determining the latitude; and the longitude by lunar observations; and keeping a complete reckoning at sea. ... : The whole exemplified in a journal, kept from Boston to Madeira, in which all the rules of navigation are introduced ... : To which are added, some general instructions and information ... relative to maritime laws and mercantile customs. / From the best authorities. ; enriched with a number of new tables, with original improvements and additions, and a large variety of new and important matter: also many thousand errors are corrected, which have appeared in the best systems of navigation yet published. ; By Nathaniel Bowditch, Fellow of the American Academy of Arts and Sciences. ; Illustrated with copperplates.