Show I 1 in A considerable amount of anxiety has recently been caused especially among corporations controlling waterworks water works by the discovery that the passage of electric cars haa a tendency to seriously injure the water pipes of a city by causing electrolysis tro lysis at a meeting of a waterworks association an electrical engineer stated that in some cases under his observation lead pipe had entirely disappeared by the action of alie electric current and a like result had attended the use of iron galvanized iron brass and pipes the corrosive action takes place where the current leaves the pipe and not where it enters it and the phenomena mentioned were undoubtedly owing to the operation of electric cars it is satisfactory is to know that the electrolysis tro lysis of water pipes become serious a question as it ia thought by some it may a certain remedy although it would increase the cost of water installations would bo the insulation of the con dnitA nr |