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Vegetable secretions and the means by which by are effected by Kate L. Hudson, 1888

Vegetable secretions and the means by which by are effected by Kate L. Hudson, 1888, Page 50

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46 work of secretion is carried on by or results from an originating force which is the energy of the individual cell, whether single or in combination with other similar cells. The secretions resulting from the activity of the cells, we have found to be exceedingly diverse and different in degrees of usefulness to the plant as well as in economic value, to man. Our study ranges over an extremely wide field. From the poisonous conium which lies in wait, ready to destroy, to the caoutchouc, almost indispensable because of its great economic value: from the starch and chlorophyll absolute necessities
 
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