ety was held on May 6, says Science. The inky blackness, about a foot in diameter. the end of a spindle, and at one sideisa lever. To exhibits included X ray photographs by Messrs. Swin- To describe the wonderful contortions of those two operate the toy this side projecting piece is pulled out,… … oxygen and nitrogen are equably penetrable, and veins, they could be made to leave a shadow on the hence they conclude that the absorption has no rela- photographic plate. The Physical Institute at Rome tion to molecular weight or the arrangement of the has performed this experiment. Into the…
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![An illustration from Thirty plates, proofs of illustrations to the “Household edition” of the works of Charles Dickens.] [1875, 76]](https://img.insideoutlibrary.com/img/200/bl-bl_000930639_4-167-1.webp)
