Fig.l. 



Fig. 2. 



Fig. 3. 



• • 



Diagram* showing relate ve position* 



when sea Usv«l reduction U made by Boi 

 (Denver is slightly displaced m longitude) 



.200 | S 

 +.100 *> » 



-.200^ % 

 ^-.300 ~j 



DIAGRAMS ILLUSTRATING THE RESULTS OF PENDULUM OBSERVATIONS ACCORDING TO PUTNAM 



