Show cockroach a while inspecting a large plant plant attention was called to a pecullar peculiar incident on a branch circuit there was some peculiar trouble fuses would blow out sit at various intervals running from one half to twenty four ho lio licursi ursi r says the popular science monthly at I 1 first no attention was paid but A when he the ground detector started to show ion signs of trouble first on one side tind then on the other an investigation was made covers were removed from the outlet boxes ind and from one box a shower of live and dead cockron cockroaches ches fell on the head of the examiner on looking into the box bor it was found that the lie insulation around the joints and especially at the points had been entirely eaten away the vibration doing the rest toward creating the trouble |