Yellow Gum RESIN, is procured from the yellow resin tree, which is as large as the English walnut tree. The properties of this resin are equal to those of the

most fragrant balsams. It exudes from the bark spontaneously, but more readily if incisions are made. The colour of it is yellow, and at first it is fluid; but after being inspissated in the sun, it becomes solid. When burnt on hot coals, it smells like a mixture of balsam of Tolu and benjoin, approaching somewhat to storax. "It is perfectly soluble in spirit of wine, but not in water, nor even in essential oil of turpentine, unless it be digested in a strong heat. The varnish which it makes with either is very weak, and of little use. With respect to its medicinal qualities, Mr White has found it, in many cases, a good pectoral medicine, and very balsamic. It is not obtainable in so great abundance as the red gum produced by the eucalyptus resinifera. The plant which produces the yellow gum seems to be perfectly unknown to botanists, but Mr White has communicated no specimens by which its genus or even class could be determined."