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Article
August 17, 1912

Synthese der Zellbausteine in Pflanze und Tier.

JAMA. 1912;LIX(7):569. doi:10.1001/jama.1912.04270080251034

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Abstract

Perhaps the author of this work is most widely known by his investigation of the problem of the absorption and utilization of iron which refuted the hypothesis of Bunge that only organic iron compounds could be utilized by the economy and showed on the other hand that the organic compounds are first broken down by the digestive juices and the iron converted into the ionic condition before it can be utilized by the organism.

It was an extension of this work on the organic iron compounds that led him to the discoveries and speculations embodied in the present work. Starting with the known dependence of the animal organism on already formed material furnished by plants for the "building-stones" from which its cells are to be constructed, the author proceeds to show the specific character of the materials furnished by the plant and the equally specific although different products which form

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