. The resistance to breakage different points by the rays of the various colors. In is slightly increased by the presence of a feeble pro- theses recently ijresented to the Faculty of Sciences of support of this theory, he makes the following re- Paris, may be mentioned an important one by Mr.… … The strength of this paste, when once it is thorough- plunged in the melting carbonic acid, which was con- THE AMEKICAN YACHT DEFENDER. ly hardened, is almost beyond belief. The bit of cheese tained in a glass tube protected against radiation by a cloth prevents any clogging of the pipe by the…
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