[295] Harvey: On Generation, LII, Syd. 381, l. 26-35; Op. Omn. 398, l. 1-8. [296] Harvey: On Generation, LII, Syd. 391, l. 11-30; Op. Omn. 408, l. 8-22. [297] Aristotle: On Soul, Book I, chapter 2--Harvey's own reference. For Thales, Diogenes, Heraclitus, Alcmæon, and their views, see also Zeller, Die Philosophie der Griechen, I Theil, 5 Auflage, Leipsic, 1892. For Critias, see William Smith, Dictionary of Greek and Roman Biography and Mythology, Vol. I, London, 1880, 892. [298] Aristotle: History of Animals, I, chapter 19--Harvey's own reference. This should read III, chapter 19, 520_b_, 14-17 and 521_a_, 6-9. The reference to Book I is an error of the press which has been copied without correction from the _Editio Princeps_ in both the Opera Omnia and the Sydenham translation. Aristotle: On the Parts of Animals, II, chapter 3 (Harvey's own reference), 650b, 2-8. [299] Harvey: On Generation, LII, Syd. 380, l. 37 to 381, l. 20; Op. Omn. 397, l. 8-27. [300] Plato: Phædo, 96_b_: Platonis Dialogi, Hermann-Wohlrab, Vol. I, 142, l. 2-3. [301] Censorinus: De Die Natali, chapter VI, § 1, Edition Hultsch, 1867, 10. [302] Empedocles: Fragment 105, l. 3; Diels, Poetarum Philosophorum Fragmenta, Berlin, 1901, 146, constituting Vol. III of Wilamowitz- Moellendorf, Poetarum Græcorum Fragmenta. See also Zeller, Die Philosophie der Griechen, I Theil, 5 Auflage, 1892. [303] Theophrastus: Opera Omnia: On Sensation and Sensible Things, II, (10), Edition Wimmer, 323_a_, Paris, Didot, 1866. [304] Compare Aristotle: On Soul, 404_b_, 27-30. [305] Aristotle: History of Animals, 520_b_, 14-17. [306] Harvey: On Generation, LII, Syd. 382, l. 18-21; Op. Omn. 398, l. 24-27. [307] Harvey: On Generation, LII, Syd. 380, l. 3-6; Op. Omn. 396, l. 9-12. [308] Harvey: On Generation, LII, Syd. 390, l. 35 to 391, l. 2; Op. Omn. 407, l. 25-30. [309] See Harvey: Letter to Hofmann, Syd. 595, l. 6-15; Op. Omn. 635, l. 10-17. [310] See J. B. Meyer: Aristoteles' Thierkunde, 1855, 411, l. 14 to 413, l. 2. [311] _Calor animalis._ [312] Harvey: On Generation, LXXI, Syd. 501, l. 29 to 502, l. 16 and 502, l. 38 to 503, l. 20; Op. Omn. 523, l. 1-16 and 524, l. 8-24. [313] Harvey: On Generation, LXXI, Syd. 504, l. 6-10; Op. Omn. 525, l. 13-16. [314] Harvey: On Generation, LXXI, Syd. 504, l. 16-34; Op. Omn. 525, l. 20 to 526, l. 2. [315] Aristotle: On the Generation of Animals, Book II, chapter 3 (Harvey's own reference), 736_b_, 29-31.