William Ramsay's correspondence and papers, vol. 8: The discovery of helium (part 2) Volume 8/2 of William Ramsay's correspondence and papers, as compiled by his former assistant, Morris W. Travers, following Ramsay's death. The contents of the volume are as follows: Pages 122-137: Introduction Pages 140-325: Correspondence, papers and photographs of extracts from Ramsay’s laboratory notebooks. (April-November 1895) Pages 167-181: Ramsay’s ‘On helium, a constituent of certain minerals’ (manuscript) – a paper submitted to the Royal Society 27 April 1895. Pages 182-190: A printed copy of the above (reprinted from ‘Proceedings of the Royal Society, Vol. 58, 1895). Pages 213-250: W. Ramsay, J.N. Collie and M.W. Travers, ‘Helium, a constituent of certain minerals’, ‘J. Chem. Soc.’ (manuscript). Pages 251-269: A printed copy of the above. Pages 271-273: Alexander Kellas, ‘On the percentage of argon in atmospheric and respired air’ (reprinted from ‘Proceedings of the Royal Society’, Vol. 59, 1895). Pages 279-283: - M.W. Travers, ‘Some experiments on helium’ (reprinted from ‘Proceedings of the Royal Society’, Vol. 60, 1897). - Typescript of Ramsay’s letter-diary from Iceland (paginated separately 1-13). 1895-[1957]