354 RARE ESSENTIAL OILS. 



1869. of the barren limestone slopes of the Southern Alps at an ele- 

 vation of 4000 to 7000 feet. This pine is closely related to the 

 common Scotch fir (Finns sylvestris), but has a curious decurn- 

 beut habit of growth, giving it the aspect of a shrub of 6 feet 

 high with long branches spreading along the ground; seen 

 covering the mountain side it might at a distance be mistaken 

 for furze (Ulex Europcea). The essential oil is distilled at 

 Reichenhall, in Bavaria, as well as in other places, and is held 

 in high estimation by the Germans, who use also an aqueous 

 extract made of the leaves, and other preparations. The oils of 

 Emulsion of Pinus sylvestris and of P. Pumilio have been prescribed in 

 - England in the form of emulsion made thus : 



B. Olei pini sylvestris Sijss 

 Magnesias carbonat. 3iss 

 Aquae destillatse ad giij 



Misce. One or two teaspoonfuls in a pint of warm water to 

 be inhaled (from an inhaler) for ten minutes twice a day. 



Dr. Mackenzie has also prescribed the oils of Abies pectinate^ 

 of cajeput, of hops, and of sandal wood. The specimen of oil 

 of Abies pectinata was distilled in the neighbourhood of Berne. 

 In odour it resembles the fine, transparent and fragrant turpen- 

 tine which is yielded by the trunk in very small quantity, and 

 which was formerly found in the shops under the name of 

 Strasburg turpentine. 



The oils of canella, Chian turpentine, ptychotis and origa- 

 num were distilled for chemical examination, and have not been 

 employed in medicine. That of lignaloe is used in Mexico as 

 a perfume. 1 



1 Some account of the wood from which it is obtained will be found in a 

 paper by Mr. Collins in the Pharm. Journ. and Trans, for April 1869, 

 p. 590. 





