A BEAUTIFUI, GLASS LENS AND MOUNTING RECENTLY BUILT IN FRANCE) FOR THE 

 KILAULA LIGHTHOUSE NOW UNDER CONSTRUCTION IN THE HAWAIIAN ISLANDS 



It will be the landfall light approaching the islands from Japan. The light will give a 

 double flash of 940,000 candle power every 10 seconds. The lens and mounting "weighs 

 nearly 4 tons and turns on a mercury float, making a complete revolution every 20 seconds 

 and givmg a double flash of about 940,000 candle power every 10 seconds. The light is 

 sufficiently powerful to be visible 40 miles, but because of the earth's curvature it can be seen 

 only 21 miles" (see pages zi and 39). 



42 



