Cutter's E. L. insulator prevents blackening of ceiling

A Good Insulator. — Judging from the popularity of the Cutter E. L. Insulator, the blackening of ceilings by arc light wires whould be less frequently met with than heretofore. The reason is quite plain, as there seems to be no practical way of avoiding the blackening when the ordinary porcelain insulators are used. But as this unsightly effect decreases rapidly as the distance between the wires and the ceilings becomes greater, this insulator seems to have practically solved the difficulty.