ing them to dry thoroughly, fasten them to a Bunsen 

 burner as shown in the figure, and light the gas. The 

 flame will glow with a dull yellow light, due to the slow 

 burning of the salt present in the asbes- 

 tos. Lower the shades in order to ex- 

 clude from the room all illumination ex 

 cept that of the burning salt, and record 

 in your notebook the apparent color of 

 ten different objects in the room. State 

 also the true color of these objects ; that 

 is, their color in daylight. 



What can you say of the complexion 

 -of your neighbor when seen in yellow 

 light ? Can you suggest any reason 

 for this change in appearance ? 



Note. A saturated solution of salt 

 and water is one in which no more salt Fl s G oak t 9 d ^ m 



Can be dissolved. give a yellow flame. 



EXPERIMENT 53. 



HOW STRANGE COLORS ARE 

 PRODUCED 



To find what common colors are blended to produce the 

 tints of old rose, London smoke, sage and mauve : 



The color top (Fig. 50) has a central peg on which 

 colored paper disks can be slipped, each disk having a 

 hole in the center and a slit from the center to rim. Two 

 or more of these disks can be interlocked so as to expose 

 sectors of various sizes and colors, and when the top is 

 spun, the various colors of the sectors are so blended that 

 a totally different color results. 



Arrange various sectors on the top until the color 



