Show THE POISONS IN COAL GAS many are known Dut There Is ono one constituent that Is a puzzle to scientists the the poisonous properties of coal gas are generally attributed to its content I 1 of carbonic oxide especially as ab no other substance of known poisonous properties has fias been found in it ami patients suf suffering foring from coal gas polso poisoning show tho symptoms associated with the iho inhalation inn ration of carbonic cir ctr bonic oxide the peculiar bright red color of the blood from experiments made by dr von leri at halle it seem probable that wo we must revise this view for on making experiments with frogs animals particularly resistant to carbonic oxide it was found that they were 1 far more rapidly by coal gas than b the corresponding amount of the oxide other experiments with flogs dogs showed that the poisonous effect of coal gas was twice or three times its aa great as that of the carbonic oxide oaldo it contained cont evidently there Is somo other constituent of coal gas which Is poisonous though what it Is cannot yet be stated merely removing the carbonic carbon le oxide from coal gas will not to render ender it nonpoisonous non poisonous tho the ironmonger |