C20H8. A white crystalline substance. A product of the distillation of Coal Tar.

Med. Prop. and Action. Stimulant, expectorant. It is also considered anthelmintic. Externally, it is used in the form of ointment (1 part of Naphtaline to 30 of Lard).

* Dispensatory, p. 463. Beng. Dispens., p. 286. On the Value of Naphtha in Tubercular Phthisis, Lond. 8vo, 1844.

§ Consumption successfully treated with Naphtha, Lond. 8vo, 1845. || Med. Times, vol. xvii. 1848.

Doge, gr. viij. - gr. xxx. in emulsion or syrup.

1868. Therapeutic Uses

In Lepra, Psoriasis, and other obstinate Diseases of the Skin, it has been used successfully by M. Emery * and other Parisian surgeons. The ointment (ut supra) is spread upon linen and applied to the parts.