[8] Harvey: Exercise to Riolanus, II, Syd. 122, l. 31 to 123, l. 1; Op. Omn. 122, l. 16-21.

[9] Harvey: On the Motion, etc., VIII, Syd. 47, l. 29-33; Op. Omn. 49, l. 28-30.

[10] Harvey: On the Motion, etc., IX, Syd. 48, l. 10-14; Op. Omn. 50, l. 8-11.

[11] Plato: Timæus, 70a and b; 77c to 78a; 78e to 79a.

Aristotle: On the Parts of Animals, 668a, 4 to b, 6.

Galen: On the Natural Faculties, Kn. Vol. II, 210-212; Dar. Vol. II, 318.

[12] Aristotle: On Sleep and Waking, 456a, 30 to b, 5.

Galen: On the Use of the Parts, etc., Kn. Vol. III, 269-270; Dar. Vol. I, 280-282.

[13] Galen: On the Natural Faculties, Kn. Vol. II, 186-189; Dar. Vol. II, 306-307.

[14] Harvey: On the Motion, etc., Syd. 72, l. 24 to 73, l. 12; Op. Omn. 73, l. 26 to 74, l. 15.