Ornament Details
079780070000090_0
headpiece
The seaman's daily assistant, being a short, easy, and plain method of keeping a journal at sea; in which are contain'd rules, shewing how the allowances for lee-way, Variation, Heave of the Sea, Set of Currents, &c. are to be made; and to Correct the Dead - Reckoning by an Observation, in all Cases: And also all the Tables that are any ways necessary for the Seaman's Use in keeping a Journal. By Thomas Haselden, Late Teacher of the Mathematicks in the Royal-Navy.
printed for W. and J. Mount, T. Page, and Son, on Tower-Hill
9
59
161
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