The above description is all that we have been able to obtain in relation to this plan of an electric telegraph and here introduce, figure 65, to illustrate it. The 30 needles are represented on the screen, each carrying a shade, which conceals the letter when the needle is vertical. The needle belonging to the letter F, is, however, deflected, and the letter is exposed. The screen is supposed to be at the _receiving_ station. To the left hand of the screen, 30 wires, _e, e_, are seen joined to one, _a_; the other 30 wires, _d, d_, are seen below the screen. These wires may be supposed to extend many miles, and to be joined with their corresponding wires, _c_, and also _v, v_, of the _transmitting_ station, where it will be observed, the wire, _c_, connects with the battery at one pole, and from the other pole a wire is continued and soldered to the metallic plate, _o, o_, which extend under all the 30 keys, _i, i_. These keys are each insulated, at their extremity, by being fastened to a wooden standard, L, L, to which a wire is soldered. Now, suppose the key, F, is pressed down, (the sixth key from the left,) the fluid then passes from the battery, B, through the wire to _o_, the plate; then to the key in contact with it; then to its wire, marked by the arrow; thence through the extended wire to its corresponding wire at the receiving station, denoted by the arrow; then through the coils of the multiplier, deflecting the needle, F; then returns through its wire, at the left, to the common wire, _a_; then through the extended wire to C, and the battery, of the transmitting station. In this manner any letter upon the screen may be indicated. _Extract from the Report of the Academy of Industry, in reference to a suggestion of M. Amyot of an Electric Telegraph._