Show Will Not No Destroy External Parasites No Preparation Effective in Food or Drinking Water Prep Prepared r d by the United Slates Statu Department of ot Agriculture So far as ns Is known b by any of ot the scientists of oC the United States Department Department Depart Depart- ment mont of A Agriculture who have been testing the tue claims of certain manufacturers manufacturers of lice mite and bug blue preparations prep prep- there Is no preparation made that can be fed to poultry In the food or drinking water that will kill external external external exter exter- nal pests or parasites There are ure beIng being being be be- ing advertised and continuously offered offered offered of of- to the numerous misbranded misbranded misbranded mis- mis branded preparations for use In this way vay by manufacturers who are either entirely Ignorant of the physiology of ot ofa a n chicken or grossly unscrupulous These preparations are sold for the most part vart directly to consumers by I parcel post Most rost of the products so o advertised are composed of various combinations of such chemicals as us sulphur charcoal charcoal charcoal char char- coal calcium sulphide capsicum sodium so so- sodium carbonate naphthalene sand mix calcium and other Ingredients The Insecticide and fungicide board has recently made I tests of n fl number of these mixtures and reports that In no single Instance has one been found to give the e effect claimed for it The board further states that It Is of the tho opinion that It ItIs ItIs Itis Is unlikely that any substance wIlllie will wm willbe be lie found which will control or kill external ex ox- parasites of ot chickens when fed fedIn fedIn fedIn In the feed teed or drinking wa water ter Tests rests have not been made of all of ot the thc substances advertised against all allf If f the Insects named but It Is believed that sufficient evidence has been obtained obtained ob oh- tamed to prove the extreme unlikelihood unlikelihood hood of ot the method of ot controlling external ex ex- pests b by Internal administration tion Lion of oC an nn Insecticide |