[PrevPage] [Next] [INDEX ]  Volume 1   10 Mar. 1876    Page 42  [Source] [ NOTES ]
  1. The effect was not increased by increasing the power of the battery. The maximum loudness was obtained with two cells.

  2. When more than two cells of battery were employed the escape of gas at the wire, W, was so violent as to cause the wire to vibrate. upon listening at M the noise of the effervescence was perfectly deafening. The sound was audible from S also but in a lesser degree. No sound was audible from the Receiving Inst. when the spring S was removed.
    When sounds were uttered into M by Mr. Watson they were audible at S in addition to the hissing sound due to the escape of gas at W.

  3. The pipe P being of brass and the wire W of platinum the arrangement constituted in reality a battery. A black deposit formed upon W which had to be removed every minute or two.
[PrevPage] [Next] [INDEX ]  Volume 1   10 Mar. 1876    Page 42  [Source] [ NOTES ]