29740. Medicated feed. (F.D.C. No. 49635. S. No. 62-726 X.) QUANTITY : 72 50-lb. bags, at Clay Center, Kans., in possession of Key Milling Co., Inc. SHIPPED: An active drug ingredient of the article, arsanilic acid, had been shipped from Charles City, Iowa, on an unknown date. LABEL IN PART: (Tag on bag) "Keytone Medicated 1. For the prevention of chronic respiratory disease (Air-sac infection) and hexamitiasis in poultry, and swine enteritis when fed continuously. * * * Active Drug Ingredients Chlortetracycline (Aureomycin) equivalent to Chlortetracycline Hydrochloride .50 grams per pound (100 grams per ton). 3-Nitro-4 Hydroxyphenylarsonic Acid 0.01% * * * Manufactured by Key Milling Co., Inc. Clay Center, Kansas." RESULTS OE INVESTIGATION: Analysis showed that the article contained ap- proximately .022 percent of arsanilic acid. Inspection of the manufacturer showed that arsanilic acid has been substituted for 3-nitro-4-hydroxyphenylar- sonic acid. The article had been manufactured by the dealer who used arsa- nilic acid which had been shipped as above. LIBELED : 12-20-63, Dist. Kans. CHARGE : 402(a) (2) (C)—while held for sale, the article contained a food addi- tive, arsanilic acid, at the level of .022 percent, which, under the directions of continuous feeding, was unsafe within the meaning of 409 since it and its use or intended use were not in conformity with a regulation or exemption. The libel alleged also that the article was adulterated and misbranded under the provisions of the law applicable to drugs as reported in notices of judgment on drugs and devices, No. 7919. DISPOSITION : 3-12-64. Default—destruction.