278 - INDUSTRIAL PLANTS © 
Fie. 268.—Cork Oak. Wedge of trunk cut across to show wood, with 
strong pith-rays and annual rings, and the thick bark consisting of the 
outer “virgin cork”’ (light colored) and the inner ‘‘cork mother” (dark 
colored). (Figuier.) 
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Fic. 269.—Harvesting Cork. (Figuier.) 
