Alum in baking powder. : The complete text of the "Trial examiner's report upon the facts", including a review of scientific testimony concerning alum in baking powder and its physiological effects / as submitted on November 12, 1925, by trial examiner Edward M. Averill to the Federal Trade Commission, Washington, D. C., in the matter of Royal Baking Powder Company, docket no. 540; accompanied by facsimiles of two orders of the Federal Trade Commission, printed with special type arrangement and published, with added foreword, notes and indices, by Royal Baking Powder Company.