Winsor, Justin, 1831-1897, Maclean, John, 1851-1928, association, MacLean, Harrison John (autograph) · Boston ; New York : Houghton, Mifflin and Co. · leaf 119
at centuryeven it had become so familiar a sightthat poets used it in their metaphors.The variation of its needle was notindeed unknown long before Colum-bus, but its observation in mid-oceanin his day gave it a new signifi-cance. The Chinese had studied the phenomenon, and their observations upon… … E.ARLY COMPASS.* after Vols. III. and IV. were in type, Mr. ArthurJames Weises Discoveries of America to the year1525 was published in New York. A new draftof the Maiollo map of 1527 is about its onlyimportant feature. 1 See an enumeration of all these earliermaps and of their reproductions in part…
Cartography
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