Smithsonian Report, 1920— Abbot. 



Plate 7. 



•*t^ 



Vrt 



•7 ^^m^u 





I. Montezuma Solar Observing Station, Chile. Coelostat and Pyrhe- 

 liometric Apparatus. 



2. Montezuma Solar Observing Station. The Peak on Which the 

 Observatory is located. 



