le to take up all the constituents by one solvent Two solutions were necessary. The pitchblende solutions contained 115 grammes of TJ,Osi and yielded in sixty-one days a quantity of helium, which was measared as 2 X 10-* cubic centi- meters in the capillary of a McLeod gage. This gives the rate as… … Berber's aeroplane No. IX. Captain Ferber. at Lewistown Junction, 7,000 at Pomeroy, and 205,000 at Denholrc. m ICARUS.
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