CHEMICAL HISTORY OF A CANDLE 103 



from the ball, of the shape it appears to you. It consists of 

 a multitude of different shapes, succeeding each other so fast 

 that the eye is only able to take cognizance of them all at 

 once. In former times I purposely analyzed a flame of that 

 general character, and the diagram shows you the different 

 parts of which it is composed. They do not occur all at once; 



FIG. 60 



it is only because we see these shapes in such rapid succes- 

 sion that they seem to us to exist all at one time. 



It is too bad that we have not got farther than my game 

 of snapdragon; but we must not, under any circumstances, 

 keep you beyond your time. It will be a lesson to me in 

 future to hold you more strictly to the philosophy of the 

 thing than to take up your time so much with these 

 illustrations. 



