Fitting, Hans Physiological Principles for Determining the Value of the Various Rubber Tapping Methods, Founded on Some Experiments Made on Hevea Brasiliensis. Translated From the German by F.H. Renton
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Physiological Principles for Determining the Value of the Various Rubber Tapping Methods, Founded on Some Experiments Made on Hevea Brasiliensis. Translated From the German by F.H. Renton