I have seen physicists in their natural habitats, which are the universities; at their roundups, which are the regular meetings of the American Physical Society; on the prowl at Almagordo, Las Cruces, Bikini, Washington, Brazil; at a good many way stations; and (once) in jail. I have seen them talking—on the whole very sensibly—on physics; a little less sensibly on more remote matters; and very foolishly about newspapers.

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