 | 1863 - 1198 pages
...legislation. Soon afterwards Humboldt reported that 25,000 cinchona trees were destroyed every year; and Ruiz protested against the custom of barking the trees, and leaving them to rot. If the trees bad been felled as near as possilile to the root, an aftergrowth might have b:en... | |
 | American Medical Association - 1870 - 706 pages
...; soon afterwards Humboldt reported that 25,000 cinchona trees were destroyed every year, and Ruiz protested against the custom of barking the trees,...leaving them to be destroyed by rot. But nothing was done in the way of conservancy, either by the government or by private speculators whose subsistence... | |
 | American Medical Association - 1870 - 16 pages
...; soon afterwards Humboldt reported that 25,000 cinchona trees were destroyed every year, and Euiz protested against the custom of barking the trees,...leaving them to be destroyed by rot. But nothing was done in the way of conservancy, either by the government or by private speculators whose subsistence... | |
 | John Timbs - 1873 - 378 pages
...legislation. Soon afterwards Humboldt reported that 25,000 cinchona trees were destroyed every year, and Ruiz protested against the custom of barking the trees and leaving them to rot. It appears that if the trees had been felled as near as possible to the root, an aftergrowth might... | |
 | Sir Clements Robert Markham - 1880 - 588 pages
...soon afterwards Humboldt reported that 25,000 chinchona-trees were destroyed every year, and Ruiz § protested against the custom of barking the trees,...Weddell, alluding to this recklessness as regards C. Calisaya, observes that "the forests of Bolivia, rich as they are, cannot long resist the continual... | |
 | Sir Clements Robert Markham - 1880 - 592 pages
...soon afterwards Humboldt reported that 25,000 chinchona-trees were destroyed every year, and Ihiiz § protested against the custom of barking the trees,...But nothing was ever done in the way of conservancy, cither by the Government, or by private speculators whose subsistence depended on a continued supply... | |
 | Ignacio Gutiérrez Ponce - 1900 - 566 pages
...; soon afterwards Humboldt reported that 25.000 cinchona trees were destroyed every year. and Ruiz protested against the custom of barking the trees...way of conservancy, either by the Government, or by prívate speculators whose subsistence depended on a cultivated supply of bark." (Peruvian Bark. A... | |
 | Ignacio Gutiérrez Ponce - 1900 - 560 pages
...destroyed every year. and Ruiz protested against the custom of barking the trees and leaving tl1em to be destroyed by rot. But nothing was ever done...way of conservancy. either by the Government, or by prívate speculators whose subsistence depended on a cultivated supply of bark." (Peruvian Bark. A... | |
 | American Medical Association - 1870 - 704 pages
...legislation; soon afterwards Humboldt reported that 25,000 cinchona trees were destroyed every year, and Ruiz protested against the custom of barking the trees,...leaving them to be destroyed by rot. But nothing was done in the way of conservancy, either by the government or by private speculators whose subsistence... | |
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A century ago, Condamine raised a warning voice against the destruction that was going on in the forests of Loxa. Ulloa advised the government to check it by legislation; soon afterwards Humboldt reported that 25,000 cinchona trees were destroyed every... 