TI-IK ORIGIXAI. 'lIlIMlil.K SIIOAI, I.IGHT STATKJX, \-IR(UXIA 



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THE TIlIMnLK LIGHT STATION AFTJ.K A bclluu.\l-.l< HAD C( il.I.i l)i:i) WITH 11 AM' MM 



IT ON firh; 



A temporary light is shown, pending the building of a more substantial structure, now 



under wav 



wliile ihc consumption of oil has l)cen 

 reduced from 2,280 gallons to 1.300 gal- 

 lons a year. 



Electric lights are iise'd at a few light 

 stations only. The exi)ense is too great 

 to warrant the employment of electricity 

 at many important stations. For some 

 harbor lights it can be used to advantage 

 by taking current from a local source of 

 supply, and a light can thus be main- 

 tained in an exposed position and con- 

 trolled from the shore. 



The electric light at Xavesink, on the 

 higlilands just south of Xew York har- 

 bor, is the most powerful coast light in 

 the United States. This light shows 

 each five seconds a flash of one-tenth 

 second duration estimated at 60 million 

 candle power. .Mthough, on account of 

 the curvature oi the earth, the light it- 

 self cannot be seen more than 22 miles, 

 its beam has been reported to have been 

 ol)served in the sky at a distance of 70 

 nautical miles (see page 39). 



33 



