American practical navigator: an epitome of navigation and nautical astronomy (1914)
Bowditch, Nathaniel, 1773-1838, Logan, George Wood, 1868-1915, United States. Navy Dept. Bureau of Equipment · Washington, Govt. Print. Off · leaf 253
rd-moving current, consisting of streaksof warm water with colder water between. The locality in which ice of all kinds is most apt to be found during the monthsof April, May, and June lies between latitude 42° and 45° and longitude 47° and 52°west of Greenwich. Here the Gulf Stream and the… … FlO. 81. Besides the three charts of monthly limits for Amil, May, and June, a fourthchart is presented showing the general limits within which icebergs and field ice harebeen encountered during the same months. 553. SIGNS OF THE PROXIMITY OF ICE.—The proximity of ice is indicated bythe…
Navigation · Nautical astronomy
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