Color Photography Explained 9 



7n this illustration is shown some of the special equip- 

 ment devised for this work. These lamps, of nearly nine thou- 

 sand candle power, were used in making a number of the pictures 

 which could be made indoors such as those of flowers and fruits 

 which could be brought to the laboratory. It will be noted that the 

 reflecting surfaces of these lamps, instead of being white, are a 

 yellow-green, which color was used for the purpose of 

 correcting the color of the light itself, a device of 

 one of The Society's experimenters which it 

 is believed was for the first time 

 employed in this work. 



