Commentary of benefit of the Bennett insulator that is similar to the Gilbert Shackle Ball

Gilbert's Shackle Ball.—In the Telephone of 15th ult., we observe some criticism on this invention by Mr. A. R. Bennett, to the effect that the insulator is useless in wet, and not wanted in dry weather. We think this rather a bold and unguarded assertion, because small as the break is between the wire loops, there must, unquestionably, be additional insulation, and, in our opinion, to no small degree.