...Thus the system of Ptolemy was a step in astronomical progress, that of Copernicus was a revolution... 
P. J. Proudhon 「What is Property?」
...So, too, Mount Copernicus, whose brilliant whitenesssparkles in space...
Camille Flammarion Frances A. Welby 「Astronomy for Amateurs」
...It is only by careful reading of this book that the trueposition of Copernicus can be realised...
George Forbes 「History of Astronomy」
...We must here notice that at this stage Copernicus was actually confronted withthe system accepted later by Tycho Brahe, with the earth fixed...
George Forbes 「History of Astronomy」
...As has been already stated, his successor, TychoBrahe, supported the same use of epicycles and excentrics as Copernicus, thoughhe held the earth to be fixed...
George Forbes 「History of Astronomy」
...The most eminent astronomer who lived during the latter part of thiscentury was Copernicus...
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」
...At full moonthe crater of Copernicus is seen to be surrounded by radiating streaks...
Robert Stawell Ball 「The Story of the Heavens」
...After Copernicus, himself a catholic priest, hadopenly maintained the motion of the earth, and the stability of thesun:—after he had dedicated the work which advocated theseopinions to Pope Paul III...
David Brewster 「The Martyrs of Science, or, The lives of Galileo, Tycho Brahe, and Kepler」
...But here Copernicus only partially solved the difficult question...
Cecil G. Dolmage 「Astronomy of To-day」
..." Copernicus, as we haveseen, was anticipated by the Greeks; Kepler was not actually the firstwho thought of elliptic orbits; others before Newton had imagined anattractive force...
Cecil G. Dolmage 「Astronomy of To-day」
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