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 leeway, 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. /
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| Format: | Book |
| Language: | English |
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London :
Printed for Mount and Page, on Tower-Hill,
M, DCC, LXXXIV. [1784]
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