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H. B. WEISER, W. 0. MILLIG-4N AND J. HOLMES
changed in its water solubility. KObackbone sharpening of the x-ray diffraction pattern of such a sample can be noticed, nor does such sharpening become visible upon subsequent heating. 4. X-ray irradiation of dried pseudoglobulin does not bring forth characteristic changes in the x-ray diffraction pattern, although a partial absorption’of the radiation by protein and induced cleavage of the latter has been ascertained. REFERESCES (1) ASTBURY, W. T., DICHIISOS, S., AID BAILEY,K.: Biochem. J. 39, 2351 (1935). (2) ASTBCRY, R. T.,AXD LONAX,R . : J. Chem. soc. 1936,866. hl., ASD PEDERSES, I