Show efficient and uniform toxicity made for rats accord iii til to results of experiment experiments conducted by the bureaus of biological survey and chemistry of the united statts of ture a powder can be made from froin dried red bulbs chith has an efficient and uniform toxicity for rats but at the tile saire time apparently does not on duty duly endanger nd anger human brings beings or do dutli animals the use of po powdered dered red tor for the destruction of rats Is comparative ly recent in tl it Is country although althou kli lh the has been in limited use in cu rope for centuries it has never come into popular use however even there because betra lue ot of its tendency to vary great ly in potency several of the factors influencing its toxicity have been de tie viline t it I 1 L d daring during it tie e course of the pres ent investigation officials of the de I 1 artra tut of agriculture anticipate that alese tl ee experiments will be of material amsl tanco ID in the production toa iou of a uniform and stable prod ut tills this PON polion should greatly benefit the poultry inen and farmers gen brally who hesitate to ue some of the oni luer il it rat poisons on account of ail lit bariger to live tile stock |