448. Alstonia constricta.—Australian Fever Bark. 449. Alstonia scholaris.—Dita.
448. ALSTONIA CONSTRICTA F. Mueller.—AUSTRALIAN FEVER BARK. Tonic, antiperiodic. Dose of fl'ext.: 2 to 8 drops (0.13 to 0.5 mil).
449. ALSTONIA SCHOLARIS R. Brown.—DITA. A tree growing in the Philippine Islands, the bark of which is used in India as a substitute for cinchona. Dose of fl'ext.: 2 to 8 drops (0.13 to 0.5 mil) .
A Manual of Organic Materia Medica and Pharmacognosy, 1917, was written by Lucius E. Sayre, B.S. Ph. M.