New York: Parke-Bernet Galleries Inc., 1941. First edition. Harcover auction catalogs illustrated with photographs and facsimile pages. Three volumes, one for each part of the sale. Newton's vast collection was split alphabetically and auctioned as follows: Part One "A - D" on April 16, 17 and 18, 1941; Part Two "E - M" on May 14, 15 and 16, 1941; and Part Three "N - Z" on October 29 and 30, 1941. Prices realized (we presume) and in some cases names penciled in margins of all three volumes. Very good in good to very good dust jackets that were backed with linen at some point. Ownership signature of scientist and bibliophile Herbert M. Evans.