End of a word 3 End of a sentence 33 End of a message 333 Numerals follow (or) numerals end xx3 Signature follows sig. 3 Error 12 12 3 Acknowledgment (or) I understand 22 22 3 Cease signaling 22 22 22 333 Cipher follows (or) cipher ends 2122 121 3 Wait a moment 1111 3 Repeat after (word) 121 121 3 22 3 (word) Repeat last word 121 121 33 Repeat last message 121 121 121 333 Move a little to the right 211 211 3 Move a little to the left 221 221 3 Signal faster 2212 3 THE MORSE ALPHABETS. TO SIGNAL WITH THE FLAG, TORCH, HAND LANTERN, OR BEAM OF SEARCHLIGHT. The dot is made by a motion to the right of the sender embracing an arc of 90°, starting from the vertical and returning to it, in a plane at right angles to the line connecting the two stations. The dash is made by a similar motion to the left. The space which occurs only between dots is made by prolonging the signal for the last dot for an interval of time equal to the time of an additional dot, the staff of the flag, the beam of the searchlight, etc., being maintained in a horizontal position for the time specified. The signal so made would therefore represent a dot and space. The letter "C" is accordingly made thus: Right, right prolonged, right. The long dash ("L") is distinguished from the short dash ("t") by prolonging the signal to the left for a period of time equal to one dot. The long dash representing "naught" is similarly made by prolonging the signal to the left for a period of time equal to two dots. The "front" signal is made by lowering the flag from the vertical position to the front and immediately returning it to the vertical position. A slight pause is made between each signal. The following conventional signals are authorized, using the Morse alphabets: End of word one front. End of sentence two fronts. End of message three fronts. TO SIGNAL WITH THE HELIOGRAPH OR FLASH LANTERN. The dot is made by pressing down the key of the shutter and immediately releasing the same. The short dash is made by pressing down the key and holding it down for a period equal to two dots. The long dash ("L") is made by holding down the key for a period equal to three dots while the longer dash (naught) requires the key to be held down for a period equal to four dots. The space is made on the heliograph as in ordinary telegraphy by the absence of any signals for a period equal to the time of one dot. On the heliograph the letter "C" is made as follows: Short flash, short flash, interval, short flash. [Illustration: Fig. 14.] [Illustration: Fig. 15.]