1. On the occasion of Rutherford’s 60th birthday, O. Hahn and L. Meitner wrote: “There is no problem of nuclear processes that has not benefited decisively by Rutherford’s investigations, but his special love was and is, as he said himself a few years ago, the α-rays”; see Naturwiss. 19 (1931), 57.
2. Quoted in N. Feather, “Rutherford at Manchester: An Epoch in Physics,” in The Collected Papers of Lord Rutherford of Nelson, Vol. 2 (London: Allen and Unwin, 1963), pp. 15–33, p. 26.
3. J. Danysz, “Sur les rayons ß de la famille du radium,” C.R. 153 (1911), 339–341; idem., “Sur les rayons ß de la famille du radium,” Le Radium 9 (1911), 1–5.
4. H.G.J. Moseley, “The Number of,ß-Particles Emitted in the Transformation of Radium,” Proc. Roy. Soc. A87 (1912), 230–255.
5. E. Rutherford, “The Origin of ß and γ Rays from Radioactive Substances,” Phil. Mag. 24 (1912), 453–462.