Word: stetson
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Dates: during 1920-1929
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...Physical Condition of the Planets," Professor Stetson, Astronomical Laboratory...
...Outer Planets," Professor Stetson, Astronomical Laboratory...
...Mars and the Question of Life." Professor Stetson. Astronomical Laboratory...
...Mars and the Question of Life," Professor Stetson. Astronomical Laboratory...
...Kepler and Galileo," Professor Stetson, Astronomical Laboratory...