II. Helium, a gaseous constituent of certain minerals. Part II—Density

  1. William Ramsay, F. R. S.
  1. Professor of Chemistry in University College, London

Extract

1. In the original notice of this gas (‘Proc. Roy. Soc.,’ vol. 58, p. 81), it was stated that the gas obtained from cleveite contained some, but not much, nitrogen, and no hydrogen. I have since prepared samples from bröggerite, samarskite, and fergusonite, and I find that in all eases the gas evolved on heating the mineral in a vacuum is rich in hydrogen; the amount of nitrogen is in all cases infinitesimal.

Footnotes

  • This text was harvested from a scanned image of the original document using optical character recognition (OCR) software. As such, it may contain errors. Please contact the Royal Society if you find an error you would like to see corrected. Mathematical notations produced through Infty OCR.

  • Received March 12, 1896.
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  1. doi: 10.1098/rspl.1895.0097 Proc. R. Soc. Lond. vol. 59 no. 353-358 325-330
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