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The Sceptical Chymist or Chymico-Physical Doubts & Paradoxes, Touching the Spagyrist's Principles Commonly call'd Hypostatical; As they are wont to be Propos'd and Defended by the Generality of Alchymists. Whereunto is præmis'd Part of another Discourse relating to the same Subject.
Robert BoyleRead For Free -

Nationality and Race from an Anthropologist's Point of View Being the Robert Boyle lecture delivered before the Oxford university junior scientific club on November 17, 1919
Sir Arthur KeithRead For Free -


