been a chemical one. It has in the tank and have the effect of rising in the image tion of the optical lantern with a truly wonderful on the screen. At the same time the manipulation of been urged that the absence of nitrogen in petroleum effect, but there are many effects which seem to be the… … an animal origin, which was still denied by many power from two Alcott turbines, that drive dyna- for the non-nitrogenous Pennsylvania oil. Prof. mos which deliver electric power to the motors of Hoefer, however, still held to his former view, de- the rail way. claring the geological conditions of…
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