Astronomy.
Copernicus, Nikolaus, 1473-1543.
De revolvtionibvs orbium ccelestium, libri VI. Norimberge apud Ioh. Petreium. Anno M.D.XLIII. (7), 196 ff. Tables. 27 cm., in 4s. **E.50208.53 This is a copy of the Ist edition of the work in which the author an- nounced the theory that the earth revolves about the sun. The first copy reached the author on his deathbed.
Same. Basileze, ex officina Henricpetrina. [MDLXVI.] (7),
214 ff. 30cm., in 4s. **E,5020a.70 The date is taken from Graesse.
This card was printed at the Boston =
Fablic L’brary, March 7, 1924 M8229 — Astronomy.