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Geology Division
The 200-Inch Telescope Looking Northwest
Wedge ball-and-socket mounting for the base frame
Rodeo Day--push ball
1/10 scale model telescope at New York World’s Fair
Rodeo Day
Rodeo Day--push ball
William A. Fowler in the W. K. Kellogg Lab
One of the observing floor hatch covers used as a painters’ scaffold
Caltech high voltage laboratory
Rodeo Day--tug-o-war
Geology field trip
Rodeo Day--preparing the field
Geology field trip
Mt. Wilson dome of the 100″ from a distance
Rodeo Day (Mudeo)
Pentode, Western Electric 282A
Geology Faculty
Carnegie Institution-CIT Grand Canyon Expedition
Geology field trip