, 



wttdiilem 



PAINTED FOB FATHER TIME BY HUGH RANKIN 



/^WINGING from the lofty dome of the ancient ca- 



/ thedral at Pisa, Italy, hangs a massive bronze lamp. 



CX Watch it sway, as Galileo and Marina watched it 



three hundred years ago, and you may notice a peculiar thing: 



the distance of its swing varies, but the time remains the same. 



Countless eyes had idly gazed at it, but Galileo's were first 

 to read its secret— the principle of isochronism, or ' 'equal 

 time. ' ' The seventeen-year-old philosopher had discovered the 

 law of the Pendulum! 



Sixty years later, hopelessly blind, he thought out its prac- 

 tical application to clock work, afterwards adapted to pocket 

 watches in the form of the "pendulum balance.' ' 



American watch owners owe a debt of gratitude to Italy. 

 For the "pendulum balance," or balance wheel, is a prime fac- 

 tor in the precision of those timekeeping marvels of our day— 



Material^ construction, 

 adjustments and service 

 fully covered by Elgin 

 Guarantee * * * * 



Prkss of Judd A Detweiler. Inc. 

 Washington, D. C. 



