[690] Ibid.

[691] Ibid., pp. 191, 192.

[692] Decline and Fall, etc., ch. lii.

[693] Puschmann, Hist. Med. Educ., p. 158.

[694] Freeman’s Saracens, p. 54.

[695] Kingsley’s Alexandria, p. 148.

[696] Sismondi, Literature of Europe, vol. i. p. 51.

[697] Hist. Med., p. 123.

[698] See Thompson’s Hist. Chem., vol. i. p. 112.

[699] Berington’s Lit. Hist. Middle Ages, p. 415.