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November 19, 1932

Die unsichtbare Strahlung der Lebewesen (mitogenetische oder Organismenstrahlung).

JAMA. 1932;99(21):1804. doi:10.1001/jama.1932.02740730068037

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The author seeks to shed light on the question of organismal radiation from all conceivable angles and to give a full and easily understandable yet concise presentation of the whole of this difficult subject on the basis of his own and other authors' long continued and highly refined researches. An historical survey is followed by a consideration of the sources of the invisible rays and methods for demonstrating them by detectors. They were termed "mitogenetic" by Gurwitsch, "organismal" by Stempell. Detailed descriptions of the Gurwitsch, Stempell and Rejewsky effects and the technic of each are given, as also of Gesenius' metabolism experiments, hydrogen peroxide experiments and photographic demonstrations. The origin, nature and mechanism of the rays, their relation to active factors in the life of the organisms, and Gurwitsch's field theory are discussed.

Stempell concludes that the most diversified chemical changes are attended by an ultraviolet radiation of usually feeble

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