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Russell Porter and John Anderson at Palomar
Ion chamber
Sterling and Mary Emerson
pH meter, Model M
pH meter, Model G
Howard Lucas
Students in mechanical engineering lab
A small cosmic-ray shower of positive and negative electrons (7900 gauss magnetic field)
Excavation for Crellin
Grad students
Fritz Zwicky at the 18" Schmidt telescope at Palomar Observatory
William Fowler with a group of students
Sterling and Mary Emerson
Sterling and Mary Emerson
Very early JPL buildings
Construction of Kerckhoff Labs
Construction of Kerkchoff Labs
Traveling wave tube