Plantations have increased greatly in size (and also diminished in number), greater capital is involved, bagasse furnaces have been introduced, double grinding mills have increased by more than a half the yield of juice from a given weight of cane, and extractive operations instead of being carried on on all plantations have been (since 1880) concentrated in comparatively few " centrals " (168 in Feb. [Please select]
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This property is shown by chemists to reside in the extractive matter of plants, which has, therefore, been called _bitter extractive_. [Please select]
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