Gerardus Mercator

Definition and stakes

Various Popular Science Monthly (1886)

When he returned to Louvain, the doctors of the university, shocked at his boldness in questioning what was almost universally received, were ready to attack his new doctrines, anticipating their immediate publication. But he kept his own counsel, and held his cosmogony in his portfolio till such time as he should judge best to make it known. Being obliged to make his living by manual labor, Mercator selected the making of mathematical instruments, with the designing, engraving, and illumination of maps, as his business.
Source: Wikisource

Portrait of John Aubrey John Aubrey Brief Lives, Vol. 2

Nicolaus Mercator, Holsatus (whose mathematicall writings ...) , went to see him few yeares before he dyed. 'Twas about midsommer, and the weather was very hott, and the old gentleman had a good fire, and used Mr. Mercator with much humanity (being exceedingly taken with his excellent mathematicall witt) , and one piece [477] of his courtesie was, to be mighty importunate with him to sett on his upper hand next the fire; he being cold (with age) thought he [478] had been so too.
Source: Gutenberg

Edward Luther Stevenson Terrestrial and Celestial Globes Volume 1

It clearly was the intention that this should serve as the companion of his terrestrial globe of 1541, described above, since the gores are of the same size, each of the twelve being truncated in the same manner, and the circular section being prepared for the polar areas. Mercator’s merits as an astronomer by no means equaled his merits as a geographer. However, his celestial globe, by reason of the exactness of the composition, by reason of its simplicity, and by reason of the artistic skill exhibited in the workmanship, is a most worthy work of that great scientist.
Source: Gutenberg

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