ON RESINEONE OF TAR. 
213 
passes over, which is the resineone; by raising the heat to 
297£° F., resineone is obtained in a more abundant quan- 
tity; and at 482° F., resineine is obtained. If at each 
period of the operation the receivers were exchanged, the 
three products of tar may be separately collected. 
Dr. Peraire subjected these three substances to chemical 
experiments. He found that resineone has precisely the 
same properties as the tar, and that the healing art ought 
to have recourse only to the colourless oil, substituting it 
for the impure matter ; resineone and resineine seemed to be 
much less active. 
The recently prepared resineone of tar is a liquid, colour- 
less, essential oil ; of a penetrating odour. Placed on the 
tongue, it provokes a sense of heat, and an acrid taste. 
Shortly after, this sensation disappears, and a balsamic 
odour is perceived, of an agreeable nature. The resineone 
is endowed with all the properties of essential oils ; it is in- 
flammable, soluble in ether. . By distilling five parts of re- 
sineone with 100 of alcohol, an alcoholate is formed. 
By mixing these two substances in a cold state, the 
same product is rapidly obtained; the preference is to 
be given to the latter process. By this means it is easily 
determined quantitatively. The protracted influence of 
light imparts to resineone a slight yellowish tint. By 
mixing 995 parts of sugar with 5 parts of resineone, a 
saccharate is formed,, containing \ per cent, of resineone. 
This saccharate is given three or four times a day, in doses 
-of a spoonsful, with a cupful of an infusion.. It is employed 
with advantage in catarrhs of the lungs, chronic bronchites, 
and bronchorrhoea. 
The saccharate may likewise be administered in the form 
of a looch, in the following manner: — 
White looch of the Pharmacop. (French) 125 parts. 
Saccharate of resineone - 30 do. 
Five parts of resineone mixed with 995 parts of oil of 
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