Chemistry of Essential Oils

(Tuis.) #1

CONIFEKJE^11


reaches the vessel placed below the latter. When the cuts in the trunk
and the peeling of the bark are continued in an upward direction, the
gutters and the vessel are also moved upwards. In older trees contain-

FIG> 2.—Collection of the crude turpentine in the " Landes ".
[Roure Bertrand Fils.
ing more oleo-resin, several such vessels can of course be placed around
the tree.
The French turpentine industry is practically confined to the Lander
district, where the following method of collection is followed :—^


(^1) Vezes, Roure-Bertrand's Bulletin (1909), 2, 9, 3.

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