Istoria E Dimostrazioni Intorno Alle Macchie Solari, Galileo Galilei, first edition, printed in Rome by Giacomo Mascardi, 1613, with thirty-eight full page engravings of sunspots, containing Galileo's discovery of sunspots and also his observation that the sun rotated on a fixed axis, bound in vellum with old paper label on spine, with protective cover and slip case, 9" x 6 5/8". Provenance: From the Collection of Dr. Fin Sparre, Wilmington, DE.

Competitive in-house shipping is available for this lot. Very good condition, one page with minor edge damage, pages clean overall, binding tight. Ends at what would be page 167. There may be some pages missing. For example, there is a page 150, then three plates, and then page 161. The layout is as follows: unnumbered page - title/publication info on reverse, p. 1-4 - introduction, 5. Engraving of Galileo, 6. "In Galileum Galileum", 7. "Ioannis fabri Lyncei", 8. "Di Francesco Stelluti", 9-28 - Prima Lettera, 29-56 - Seonda Lettera, 57/8 - "disegni Della Maccie del sole"/verso blank, 59-96 - Illustrated plates, 97 - Terza lettera, Marco Velseri -> GG, 98-99 - Quarta Lettera, MV -> GG, 100-150 - Terza Lettera, GG -> MV (includes a 7/8 page illustration on p. 120), followed by charts: #1 - Moediceorum Planetarum, Martij Die 1. Hor. 3/verson blank, #2 - Martij Die 13. Ho. 1/verso blank, #3. Martij Di. 23. Ho. 1, followed by: 161-163 - Poscritta, 164 - errors corrected, followed by charts #4 - April D. 1. 7. HO. 2/ verso blank, #5 - April Di. 24. Ho. 1./ verso blank, followed by 1 blank end paper.