COLOUR 403 



Q. Why are COALS BLACK ? 



A. Because they absorb oil the rays 

 of the sun which impinge upon them, 

 and stifle their reflection. 



Q. Why is SNOW WHITE ? 



A. Snow consists of a vast number of 

 crystals (or small prisms), which separate 

 the rays into their elemental colours ; but 

 as these crystals are very numerous, the 

 colours unite again before they meet the 

 eye, and appear white. 



N. B. The combination of all colours makes WHITE. 



Q. Why is SUGAR WHITE? 



A. Sugar consists of a vast number 

 of small crystals, which separate the rays 

 into their elemental colours; but as these 

 crystals are very numerous, the colours 

 unite again before they meet the eye, and 

 appear white. 



Q. Why is SALT WHITE ? 



A. Salt consists of a vast number of 

 small crystals, which reflect the various 

 rays of light from different points of the 

 salt; and as these colours unite before 

 they meet the eye, the salt appears to be 

 white. 



N. B. The combination of all colours makes WHITE. 



