XIX. On the constitution of the resins. Part V. By James F. W. Johnston, Esq., M. A., F. R. S., Professor of Chemistry and Mineralogy in the University of Durham

The gum resin of sagapenum has an odour very much resembling that of assafoetida, but less powerful. Like the latter gum resin, it also gives, when treated with alcohol, a pale yellow solution, while the greater portion of the mass remains undissolved. The white matter which is left behind after exhaustion with alcohol, is soluble in water, giving a milky solution. The alcoholic solution, when evaporated, gives a pale-yellow resin, having a strong garlic odour, melting readily, and becoming fluid at 212° Fahr.