Rars Boor "Colson, Nathaniel. The mariners new kalendar
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«Th9 exact working a traverse. Also, the description
-C71M and use of the sea quadrant, fore staff, and noc- turnal. The problems of plain sailing and astro- nomy, wrought by the logarithms, and by Gunter's scale. A tide table. The courses and distances on the coast of Great-Britain, Ireland, France, &c. And the soundings coming into the channel, With directions for sailing into some principal harbours. By Nathaniel Colson ... To this Dublin
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