130 POPULAR LECTURES AND ADDRESSES. 



GENERALIZED MORSE ALPHABET. 



I. Short and long electric marks, or short and 

 long eclipses of a lamp, or short and long flashes 

 of light, or short and long blasts of sound. 



II. Movements of one or other of two objects 



(as left and right hand). 

 Movements to left and right, 

 Or movements upwards and downwards. 



III. Two sounds of different musical notes 

 acute and grave. 



Short. f Long. 



Left. J Right. 



Upward movement. j Downward movement. 



Acute sound. ( Grave. 



Understand ABCDEFGH 

 IJKLMNOPQ RS 



T U V W X Y Z Understand. 



7890 Understand. 



