Note 2573 — I.—PHÆNOGAMOUS OR FLOWERING PLANTS. (continued 20)

The average yield of aqueous extract made by the pharmacopœia process from commercial Socotrine aloes containing about 14 per cent. of water, was found from the record of five experiments, in which 179 lb. were used, to be 62·7 per cent. Barbados aloes, which is always much drier, afforded on an average 80 per cent.