Pellitoky-of-the-Wall, the Common, Parietaria officinalis, L an indigenous plant, growing on old walls, and among rubbish; flowering from May to September.

The leaves of this vegetable, when dry, exhibit a glassy appearance : and, if'strewed on heaps of corn infested with weevils, are said to destroy these predatory insects.—In cases of strangury (see Urine), three ounces of the ex-pressed juice of the plant, taken internally, or, a fomentation made Or the leaves, applied to the parts, are said to be of service, on account of its cooling and diuretic properties.—Although chemists pretend to have extracted considerable quantities of nitre from the pellitory, yet we doubt whether this herb would answer the trouble of boiling it, and crystallizing the salt-petrej unless it were collected from such ground as is naturally impregnated with nitrous particles, which may more easily be obtained from the earth itself.