Bonhams, now to Oct. 24: CATESBY, MARK. 1683-1749. The Natural History of Carolina, Florida, and the Bahama Islands. $100,000 - $150,000
Bonhams, now to Oct. 24: AUDUBON, JOHN JAMES. 1785-1851. The Birds of America, from Drawings Made in the United States and their Territories. $30,000 - $50,000
Bonhams, now to Oct. 24: ADAMS ON HIS PEAR TREES AND A LOST PORTRAIT BY SALEM ARTIST HANNAH CROWNINSHIELD. ADAMS, JOHN. 1735-1826. $10,000 - $15,000
Bonhams, now to Oct. 24: EARLIEST MAP DEVOTED TO NORTH AMERICA. FORLANI, PAULO. fl.1560-1571. $20,000 - $30,000
Bonhams, now to Oct. 24: HAMILTON DEFENDS THE CONSTITUTION. HAMILTON, ALEXANDER. 1757-1804. $20,000 - $30,000
Bonhams, now to Oct. 24: NO TAXATION WITHOUT REPRESENTATION BROADSIDE. Boston, September 14, 1768. $5,000 - $8,000
Bonhams, now to Oct. 23: ONE OF THE EARLIEST ILLUSTRATIONS OF A SURGICAL PROCEDURE. BARTHOLOMAEUS ANGLICUS. $10,000 - $15,000
Bonhams, now to Oct. 23: RICHARD FEYNMAN'S ANNOTATED COPY, WITH TWO EARLY FEYNMAN AUTOGRAPH MANUSCRIPTS. $15,000 - $25,000
Bonhams, now to Oct. 23: THE FOUNDATIONS OF MODERN COMPUTING. TURING, ALAN MATHISON. 1912-1954. $30,000 - $50,000
Bonhams, now to Oct. 23: FINE OIL PORTRAIT OF ALBERT EINSTEIN BY EUGEN SPIRO. $40,000 - $60,000
Bonhams, now to Oct. 23: PENICILLIN MOLD MEDALLION INSCRIBED BY ALEXANDER FLEMING. FLEMING, ALEXANDER. 1881-1955. $30,000 - $50,000
Bonhams, now to Oct. 23: APPLE "TWIGGY" MACINTOSH PROTOTYPE USED IN THE DEVELOPMENT OF DEMONSTRATION SOFTWARE. $80,000 - $120,000
![<b>One of a Kind Collectibles, Oct. 17:</b> [Maps] Gio. Ant. Magnini, Italia, 1620.](https://ae-files.s3.amazonaws.com/AdvertisementPhotos/c92d6947-7efa-449d-82ff-548bbf1cd1ce.jpeg "<b>One of a Kind Collectibles, Oct. 17:</b> [Maps] Gio. Ant. Magnini, Italia, 1620.")
