Ptolemy, Mercator, and Tycho Brahe compared Folder 1 Add MS 6786 f. 422 Some propositions from Ptolemy Folder 2 Add MS 6785 f. 179 Add MS 6786 f. 443v Add MS 6786 f. 441 Add MS 6786 f. 442 Add MS 6786 f. 444 Add MS 6786 f. 443 Add MS 6789 f. 416 Add MS 6787 f. 310 Ptolemy on quadrilaterals Folder 3 Add MS 6785 f. 237 Add MS 6785 f. 289 Add MS 6785 f. 290 Ptolemy: other references Folder 4 Add MS 6785 f. 23 Add MS 6788 f. 560 Book 6 Book 11 Add MS 6788 f. 10 HMC MS 241.ix f. 32 Ptolemy (c. 90–168 AD) Return to TOPICS Return to previous level