What are cosmic rays? Rev. and enl. American ed., by Pierre Auger. Translated from the French by Maurice M. Shapiro. Auger, Pierre. Shapiro, Maurice M. (Maurice Mandel), 1915- tr. Cosmic rays. QC485 .A8 539.7223 AUW "Originally published under the title of Rayons cosmiques by the Presses universitaires de France, Paris, in 1941." Chicago : University of Chicago press, c1945. c1945. 1945 Text 128 p. : eng eng fre