“Hist. de l’Acad. des Sciences,” 1769. Paris, 1772.
Berkeley, “Crypt. Bot.” p. 73; Hooker, “New Zealand Flora,” ii. 338.
“Philosophical Transactions,” liii. (1763), p. 271.
Berkeley’s “Outlines,” p. 30.
“Popular Science Review,” vol. x. (1871), p. 25.