This section is from the book "An Experimental History Of The Materia Medica", by William Lewis.
Unguentum fambuci Ph. Lond.
Succ. bacc. fambuci fpif-fat. Ph. Lond, Rob baccar. fambuci ‡ Ph. Ed.
Sanguis Draconis Pharm. Lond. & Edinb. Cinnabaris Graecorum. Dragons-blood, so called: a resin, obtained from certain large palm-like trees (Palmijuncus Draco Rumph. amb. Calamus Rotang Linn.) growing in the East Indies; brought over in oval drops wrapt up in flag-leaves, or in large and generally more impure masses composed of smaller tears; of a deep dark red colour, which changes, in pulverization, to a crimson. Sundry artificial compositions, coloured with the true dragons-blood, or with brazil wood or other materials, have been sometimes fold in the room of this commodity: some of these dissolve like gums in water, and others crackle in the fire without proving inflammable; whereas the genuine dragons-blood readily melts and catches flame, and is scarcely acted on by watery liquors. It dissolves almost totally, by the assistance of heat, in rectified spirit, and tinges a large quantity of the menstruum of a deep red colour: it is like-wise soluble in expressed oils, and imparts to them a red tincture, less beautiful than that which anchusa communicates.
This resin, in substance, has no perceptible smell or taste: when dissoblved, whether in vinous spirits or in oils, it discovers some degree of pungency and warmth. It is usually looked upon as a gentle incraffant, desiccative, and re-ftringent; and sometimes prescribed in these intentions against alvine and uterine fluxes, and ulcerations both internal and external.