Rural Economy in Its Relations With Chemistry Physics And Meteorology Or
Rural Economy in Its Relations With Chemistry Physics And Meteorology Or
J B Jean Baptiste Boussingault
The book Rural Economy in Its Relations With Chemistry Physics And Meteorology Or was written by author J B Jean Baptiste Boussingault Here you can read free online of Rural Economy in Its Relations With Chemistry Physics And Meteorology Or book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Rural Economy in Its Relations With Chemistry Physics And Meteorology Or a good or bad book?
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Cork. The oak which yields cork is known in Spain under the name of the alcornoque It forms extensive forests upon the abrupt slopes of the Pyrenees, where it is often seen growing upon arid and stony soils, that seem doomed to eternal sterility. The cork-tree has flexible and strong roots, which creep over the naked surface of the granitic masses, turning round blocks, and searching everywhere for fissuj-es and collections of sand and alluvium, into which they penetrate deeply, in search of th...e nourishment necessary to the tree. At maturity, the alcornoque rises to a height of sixty-five feet, and its trunk may be three feet and a quarter in diameter. In the Spanish Pyrenees, the superior limit of the cork-tree region, is that of the vine, about 1640 feet above the level of the Mediter- ranean. In France this tree grows luxuriantly in the communes of Passa, Lauro, &c. , the mean elevation of which is 1148 feet. In Spain, as in France, the soils on which the cork forests grow are of primitive origin ; and it is said, on good authority, that the cork- tree only grows on soils derived from granite, gneiss, mica-slate, or porphyry, and never on soils of calcareous origin.
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