1. WILLIAM HARVEY AND THE FACTS OF THE CASE
2. Harvey William, An anatomical disputation concerning the movement of the heart and blood in living creatures, trans. with introduction and notes by Gweneth Whitteridge (Oxford, 1976) (cited below as Harvey, De motu cordis, 1976), Introduction, xvii–xix.
3. Barnes Jonathan, “Galen on logic and therapy”, delivered to the Second International Conference on Galen, Kiel, Sept. 1982. The Proceedings are due to be published. References are to the edition of Galen's works by Kühn C. G. Claudii Galeni opera omnia (Leipzig, 1821–33). Loci given by Barnes are, on the axiomatic nature of demonstration: Galen, De optima doctrina, i, 52; on logical axioms: De Hippocratis et Platonis placitis, v, 782; on axioms expressing the of something: De methodo medendi, x, 27; axioms expressing the of the object: De methodo medendi, x, 753; and its or essence: De Hippocratis el Platonis placitis, v, 593. Empirical axioms: De Hippocratis et Platonis placitis, v, 226 — Barnes cites De temperamentis, i, 590, “the principles of every demonstration are things evident to perception and to thought”. The axioms are non-demonstrable: De methodo medendi, x, 34, and De naturalibus facultatibus, ii, 184; ‘evident’: De cuius libel animi peccatorum dignotione, v, 94, and De Hippocratis et Platonis placitis, v, 782. Empirical axioms are, writes Barnes, immediately perceived and are not subject to assessment: De optima doctrina, i, 49. The axioms are agreed on by all men: De methodo medendi, x, 32; but they must be properly trained: De methodo medendi, x, 42. On Galen's dislike of induction Barnes cites Ad Thrasybulum, v, 812, De semine, iv, 581, and De simplicium medicamentorum temperamentis ac facultatibus, xi, 469–71. I am grateful to Jonathan Barnes for allowing me to cite his paper.