Note 1510 — I.—PHÆNOGAMOUS OR FLOWERING PLANTS. (continued 12)
Reading edition
Our account of the production of manna has been derived from the observations of Stettner, who visited Sicily in the summer of 1847 (Archiv der Pharm. iii. 194; also Wiggers’ Jahresbericht, 1848. 35; Hooker’s Journ. of Bot. i. 1849. 124), from those of Cleghorn (Trans. of the Bot. Soc. of Edinburgh, x. 1868-69. 132), and from personal investigations made by one of us in the neighbourhood of Palermo in May 1872. See Hanbury, Science Papers, 367.