A is signified by two movements of left needle to left. B ” by three ” ” ” C (and fig. 1) by two ” ” right first, then left. D (and fig. 2) by two ” ” left first, then right. E (and fig. 3) by one ” ” to the right. F by two ” ” ” G by three ” ” ” H (and fig. 4) by one ” right needle to the left. I by two ” ” ” J (same as G). K by three ” ” ” L (and fig. 5) by two ” ” right and left. M (and fig. 6) by two ” ” left and right. N (and fig. 7) by one ” ” to the right. O by two ” ” ” P by three ” ” ” Q (same as K). R (and fig. 8) by one parallel movement of lower points, both needles to the left. S by two ” ” ” T by three ” ” ” U (and fig. 9) by two ” ” first right, then left. V (and fig. 0) by two ” ” first left, then right. W by one movement of both needles (lower points) to right. X by two ” ” ” ” Y by three ” ” ” ” Z (same as S) or specially. The Morse system of telegraphy was first brought out in 1844, and was worked by means of a Voltaic battery, an electro-magnet being used at the receiving station. This magnet attracted an “armature,” and by it dots or lines are marked on a moving paper band by a point at the other end of the wire, on the register in which the paper is carried by rollers which move out by clockwork. The lever being “tapped” down in fast or slow pressures will give a corresponding series of dots or lines (according as the pressure is long or short) upon the moving strip of paper at the receiving station. Three taps will give C, one tap and a pause will make A. The dots are “taps” on the key, the lines brief “rests” on it, as will be seen from the alphabet below, which is given as a specimen. MORSE ALPHABET. A .- B -... C .. . D -.. E . F .-. G --. H .... I .. J -.-. K -.- L - M -- N -. O . . P ..... Q ..-. R . .. S ... T - U ..- V ...- W .-- X .-.. Y .. .. Z ... . NUMBERS. 1 .--. 2 ..-.. 3 ...-. 4 ....- 5 --- 6 ...... 7 --.. 8 -.... 9 -..- 0 ___ The various stops are also indicated in the same manner by combinations of dots and lines.