Show BARIUM CARBONATE CAR ONA TE IS GOOD R RAT T POISON NEW YORK Dec Dee 3 Experiments cond conducted by experts of ot the United I States department of or agriculture to determine de determine de- de I de-I termine the most e effective rat poison Indicate that a n. mixture of ot 20 per cent barium carbonate with food tood makes snakes a 0 satisfactory bait With this percentage I a n rat needs to eat only third one-third or orI I three-eighths three of ot a meal of ot average size I to g get et a fatal dose It was found round that with his hlll dose many of the rats rate poisoned died within twenty four hours though tho an occasional rat was found which survived survived survived sur sur- an even ven longer time lime thus Indicating indicating ing g that per cent n mortality is DO not to toA tobe tobe be e expected In any case e A summary of at results of experiments conducted by various persons with with witha a aview aview view to determining the deadliness o of barium to different animals shows the fallacy of or the assumption that barium is poisonous only to rats It H is pointed out that the fatal tatal do dose e of ot barium per pel pound tend to decrease relatively as s the size of or the animal increases and that thata a a. bait calculated to be fatal tatal to rats may malo j be assumed to o be more moro or less dangerous danger danger- ous o to small sm domestic animals also 0 |