A diagram of equal parts, or An easy and expeditious method of finding the course & distance between two places ... /
Small, Andrew.
Glasgow : Published by the author 212 Broomielaw. MacIntyre and Macdonald, Glasgow.,
[1850-1869?]
With diagram mounted on wood as an accompaniment to a log slate.
Aids to navigation
Dead reckoning (Navigation)
Logbooks
Scotland Glasgow.