“Sunt Aloës species geminæ, quæ subrubet estque
Intus sicut hepar cum frangitur, hæc epatite
Dicitur et magnas habet in medicamine vires,
Utilior piceo quæ fructa colore videtur.”
[2568] Thus the pale, liver-coloured aloes of Natal is invariably associated with the transparent Cape Aloes, simply from the fact that the two drugs have a similar smell. Again, the aloes of Curaçao is at once recognized by its odour, which an experienced druggist pronounces to be quite different from that of the aloes produced in Barbados.
[2569] The average loss as estimated in the drying of 560 lb., upon several occasions, was about 14 per cent.—Laboratory statistics, communicated by Messrs. Allen and Hanburys, London.
[2570] Statement of the Trade and Navigation of the Presidency of Bombay for 1871-72, pt. ii. 19.
[2571] We have to thank J. W. Akerman, Esq., of Pietermaritzburg, for the foregoing information as to the manufacture of this drug.
[2572] Blue Books for the Colony of Natal for 1868, 1869, 1870, 1871, 1872.
[2573] 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.