The seaman's daily assistant: being a short, easy, and plain method of keeping a journal at sea; in which are contained, rules, shewing how the allowances for lee-way, variation, heave of the sea, set of currents, &c. are to be made; ... By Tho
Haselden, Thomas,-1740.
Dublin : printed by the executors of David Hay, assignee of the late Boulter Grierson,
1774.
ESTC