“My telegraph was constructed and used in the following manner: In the bottom of a glass reservoir, figure 36, of which A A is a sectional view, are 35 golden points, or pins, passing up through the bottom of the glass reservoir, marked A, B, C, &c. 25 of which are marked with the 25 letters of the German alphabet and the ten numerals. The 35 points are each connected with an extended copper wire, soldered to them, and extending through the tube, E, to the distant station; are there soldered to the 35 brass plates, upon the wooden bar, K K. Through the front end of each of the plates, there is a small hole, I, for the reception of two brass pins, B and C; one of which is on the end of the wire connecting the positive pole, and the other the negative pole of the Voltaic column, O. Each of the 35 plates are arranged upon a support of wood, K K, to correspond with the arrangement of the 35 points at the reservoir, and are lettered accordingly. When thus arranged, the two pins from the column are held, one in each hand, and the two plates being selected, the pins are then put into their holes and the communication is established. Gas is evolved at the two distant corresponding points in an instant. For example, K and T. The peg on the hydrogen pole, evolves hydrogen gas, and that on the oxygen pole, oxygen gas. “In this way every letter and numeral may be indicated at the pleasure of the operator. Should the following rules be observed, it will enable the operator to communicate as much if not more, than can be done by the _common telegraph_. “_First Rule._ As the hydrogen gas evolved is greater in quantity than the oxygen, therefore, those letters which the former gas represents, are more easily distinguished than those of the latter, and must be so noted. For example, in the words _ak_, _ad_, _em_, _ie_, we indicate the letters _A_, _a_, _e_, _i_, by the hydrogen; _k_, _d_, _m_, _e_, on the other hand, by the oxygen poles. “_Second Rule._ To telegraph two letters of the same name, we must use a unit, unless they are separated by the syllable. For example, the name _anna_, may be telegraphed without the unit, as the syllable _an_, is first indicated and then _na_. The name _nanni_, on the contrary, cannot be telegraphed without the use of the unit, because _na_ is first telegraphed, and then comes _nn_, which cannot be indicated in the same vessel. It would, however, be possible to telegraph even three or more letters at the same time by increasing the number of wires from 25 to 50, which would very much augment the cost of construction and the care of attendance.