[668]. A fluid extract, prepared by decoction from the twigs of this species of Fir, is the well known Essence of Spruce, which, when fermented with melasses, forms the popular beverage, called “Spruce Beer,” (Cerevisia Pini Laricis.)
True Riga Balsam, Beaume de Carpathes, from the shoots of the Pinas Cembra, previously bruised, and macerated for a month in water.
This same fir also affords Briançon Turpentine.
Hungarian Balsam.—A spontaneous exudation from the P. Pumilio, or Mugho Pine.
[669]. Lib. 16, c. 10.
[670]. Prax. Med. Lib. 14. c. 1.
[671]. Starkey’s Soap. This compound is effected by a long and tedious trituration of alkali and oil of turpentine.
[672]. This case was occasioned by a violent whirling of the body in a frolic! the circumstances attending it are so interesting, that I shall take an opportunity of submitting the details to the profession. See Dr. Yeat’s work on Hydrocephalus.
[673]. See “A Memoir on the employment of Terebinthinous Remedies in Disease, by James Copland, M.D.” in the Medical and Physical Journal for 1821, p. 185.
[674]. Kaauw de Persp. N. 430.