[7]

Observations on Planariae, Edinburgh, 1813.

[8]

M. Faraday, "On the Planariae," Medical Gazette, Feb. 1832; and in Edinburgh New Philosoph. Journal, vol. xiv. 1833, pp. 183-189.

[9]

Nov. Act. Acad. Caes. Leop.-Carol. tom. xiii. 1827.

[10]

Ann. Sci. Nat. (Zool.) I. tom. xv. 1828.; ibid. tom. xxi. 1830.

[11]

Mém. Acad. St. Pétersbourg, 5th ser. tom. ii. 1832.