Abstract
Summary
The results of Kugelmass and McQuarrie reported in Science, Vol. 60, No. 1551, Sept. 19, 1924, in which cod liver oil and other antirachitic substances were found to radiate ultraviolet light upon oxidation with atmospheric oxygen in alkaline solution have not been confirmed. The positive results obtained by the authors were traced to faulty technique and presumably were due to black body radiation, since controls gave the same photographic results as the cod liver oil.
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