to account for the nitrogen as derived from Ata meeting of the Railway Union in Berlin, says jected flame and smoke. an admixture of air. Iron, Herr Wiebe described some experiments recently In a glass tank attached to the lantern are inserted To these evidences, Professor Hoefer now adds the made… … recently been effected in the manufacture of glass that the petroleum found in the Niagara limestone, for optical instruments by means of the addition and particularly in the pores of Favosites niagaren- to the ordinary materials of phosphorus and chlo- sis, seems to be another corroborative…
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