Swann Galleries Thursday, October 24 sale of Early Printed, Medical, Scientific & Travel Books saw a full auction room and active bidding on the internet and phones with particular interest in works by scientists, as well as incunabula, bibles and manuscript publications. Isaac Newtons Opticks, 1704, brought $40,000, followed by a 100% sell-through rate for material relating to the acclaimed scientist. Additional highlights included Philosophiae naturalis principia mathematica, the third authorized edition and the last edition to appear in the Newtons lifetime, sold for $9,375, as well as the unauthorized third edition which earned $6,500. Further science material included a first edition of Galileos 1649 dialogue on the Copernican and Ptolemaic systems, establishing the validity of heliocentricity, which brought $16,900; and a second
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