Oil of Doegling. Oleum Choenoceti. Doegling Oil. Doegling Thran. Ernie de Rorqual Rostre, Fr.— The oil derived from the Norwegian whale, Balaena rostrata, is said by Gustave Guldberg to possess a lower specific gravity than any other animal oil (0.876 at 15° C. (59° F.)), and also remarkable penetrative properties. It is affirmed that if mixed in equal quantities with chloroform it carries the latter agent through the skin, and enables it to act as a local anesthetic in pruritus, neuralgia, etc. Mixed with wax, it is highly recommended as a basis for ointments by the same authority.