[1515] On artificial Flake Manna, in Pharm. Journ. xi. (1870) 629.

[1516] Tchihatcheff, l’Asie mineure, ii. (1856) 355.

[1517] Archiv der Pharmacie, 193 (1870) 32-52.

[1518] Stewart, Punjab Plants, Lahore (1869) p. 57; Davies, Report on the trade and resources of the countries on the N. W. boundary of British India, Lahore, 1862.

[1519] Angelus, Pharm. Persica ([see appendix]) p. 359.

[1520] Stewart, op. cit. p. 92.

[1521] Comptes Rendus, liii. (1861) 583; Pharm. Journ. iii. (1862) 274.

[1522] Archiv d. Pharmacie, 192 (1870) 246.

[1523] Loc. cit.

[1524] Davies in the work quoted at page 414, note 4.