. Contributions from the Botanical Laboratory, vol. 11. Botany; Botany. I'I 422 THE SCIENCE OF RADIOLOGY t ..A f« Aif^er with the type of chemical reaction which the emanations found to ditter witn me tyP" , ^ glycoly- produces them. Oxidation gives rays between 2240 and 2290 A., and g y y sis between 1900 and 1970 A. „ct=V,lUh the limits of In the earlier experiments, it was not possible to establish the limits THE GURWITSCH RAYS 423. \ F,c. analysis, (a) source of the rays (in tW«^~ ^scle^ (b) prism; (c) yeast cultures in agar blocks each exposed to a different pa em
. Contributions from the Botanical Laboratory, vol. 11. Botany; Botany. I'I 422 THE SCIENCE OF RADIOLOGY t ..A f« Aif^er with the type of chemical reaction which the emanations found to ditter witn me tyP" , ^ glycoly- produces them. Oxidation gives rays between 2240 and 2290 A., and g y y sis between 1900 and 1970 A. „ct=V,lUh the limits of In the earlier experiments, it was not possible to establish the limits THE GURWITSCH RAYS 423. \ F,c. analysis, (a) source of the rays (in tW«^~ ^scle^ (b) prism; (c) yeast cultures in agar blocks each exposed to a different pa emanation spectrum. (From Gurwitsch.) the spectra more accurately than within 100 A. Newer work (24, 35J^^^^^ has resulted in the development of a spectrum atlas ^^^ f;;f ^J^^^^^^ range of the emanations to within 10 A. An adjustable optical slit, which. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original University of Pennsylvania. Botanical Laboratory; University of Pennsylvania. Morris Arboretum. Philadelphia : [s. n. ]
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