When the lower half of a battery zinc becomes eaten away the remaining part can be used again by suspending it from a wire as shown in the cut. Be sure and have a good connection at the zinc binding post and cover that with melted paraffin. This prevents corrosion, which would otherwise occur from the action of the sal ammoniac or other chemical. The wire may be held at the top by twisting it around a piece of wood or by driving a peg through the hole in the porcelain insulator. --Contributed by Louis Lauderbach, Newark, N.J.

Showing Zinc Suspended