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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 6

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2. simply the secretion of waster products. The secretions, then, may be considered under two heads. 1st the Plastic Products or those that may be useful in the organism. 2nd the Waste Products or those which may not again be made use of. The first of these we may classify for convenience into the non-nitrogenous products, consisting of Fats and carbohydrates and the nitrogenous products consisting of unorganized protieds and amides.
 
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