and down in the preliminary ex- flection of the rays were definitely negative. desire to be acquainted. In the production of a really hibition of the ark are the receptacles which accom- Several investigators—Swyngedauw, Borgman, Ger- good illusion, scientifio interest is often involved, and modate… … Rueiitseii Pliotograpliy. A systematic study of the transparency of different THE ABE OPENED FOS INSFECTIOK. THE FLOOD. substances to the X rays has been made by Maurice Meslans, whose paper appears in Comptes Rendus. He the details have to be complete and perfect to obtain of their papers appear…
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