The American practical navigator : being an epitome of navigation and nautical astronomy (1888)
Bowditch, Nathaniel, 1773-1838, United States. Navy Dept. Bureau of Navigation, Cooper, Philip Henry, 1844-1912 · Washington : Govt. Print. Off. · leaf 54
y, and,as much as possible, at a distance, and without opening the window; for the proximity of the observer, either bythe heat radiating from his body or by his breath, as well as the temperature and hygrometrical state of the airissuing from the chamlier, which is always ditferent from that of… … Fig. 29. 26 INSTRUMENTS EMPLOYED IN NAVIGATION. Art. 79. The Log Book is the record and journal of a ships cruise. In it are contained all the datarelating to the run at sea, a complete meteorological record while under way or in port, and a register of the mis-cellaneous events of the cruise. In…
Navigation · Nautical astronomy
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