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Experiment Station Chemistry Department, South Dakota Agricultural Experiment Station, Brookings
Sodium arsenite and sodium arsenate were equally effective as sources of arsenic for preventing the toxic action of the selenium present in seleniferous wheat in the diet of albino rats; the arsenic sulfides (AsS2 and AsS3) were ineffective.
Arsenic as sodium arsenite was equally effective against selenium when the latter was given as seleniferous wheat, sodium selenite and selenium-cystine.
Arsenic was effective in treating rats which had been fed selenium for 20 days but was of little value after selenium had been fed for 30 days.
Manuscript received 11 January 1940.