246 MATER i A MEDIC A AND THERAPEUTICS. 



ACTION AND USES. 



The action and uses of pimento are the same as those of the 

 preparations of cloves, and other aromatics. 



Oleum Cajupiiti OIL OF CAJUPUT. The Oil 

 distilled from the leaves of Melaleuca minor. Im- 

 ported from Batavia and Singapore. 



Characters. Very mobile, transparent, of a fine pale 

 bluish-green colour. It has a strong agreeable odour, and 

 a warm aromatic taste, and leaves a sensation of coldness in the 

 mouth. 



Composition. Oil of Cajuput consists of hydrate of cajupu- 

 tene (), isomeric with Borneo camphor, C 10 H l8 0, and a second 

 oil (J), boiling at a higher temperature. 



Impurities. Copper ; detected by usual tests. Other volatile 

 oils. 



Dose. 1 to 3 min. 



Preparation. 

 Spiritus Ca.i'uputi. 1 in 50. Dose, 30 to 60 min. 



Oil of Cajuput is also contained in Linimentum Crotonis. 

 3 in 8. 



ACTION AND USES. 



Cajuput oil resembles in its action and uses oil of cloves, 

 just described, but it is more used externally as a stimulant 

 and counter-irritant. 



Eucalypti Folia EUCALYPTUS LEAVES. (Not 

 Officinal.} The dried leaves of Eucalyptus globulus, 

 the Blue Gum tree of Australia. 



Characters. Grey-green coriaceous leaves, 6 to 12 inches 

 in length, to 1 inch in breadth, ensiform, smooth, entire, 

 studded with oil glands ; smell, camphoraceous ; taste, bitter 

 and pungently aromatic. 



Composition. The leaves contain 2*75 to 6 per cent, of an 

 sethereal oil, eucalyptol, resin, tannin, salts, and colouring matter. 

 Eucalyptol is a colourless mobile liquid obtained by distillation 

 from the leaves, with a strong agreeable odour, consisting of 

 70 per cent, of a terpene, with cymol. It readily changes into 

 resin, yielding ozone. 



