151 Bibliography [13] J. J. Thomson, Cathode rays , Phil. Mag. 44 , 293 (1897). 3 [14] E. Rutherford, The scattering of α and β particles by matter and the structure of the atom , Phil. Mag. 21 , 669 (1911). 3, 4 [15] Physics at the British Association , Nature 106 , 357 (1920). 3 [16] J. Chadwick, POSSIBLE EXISTENCE OF A NEUTRON , Nature 129 , 312 (1932). 3 [17] H. Yukawa, On the interaction of elementary particles , Proc. Phys. Math. Soc. Jap. 17 , 48 (1935). 3 [18] C. M. G. Lattes, H. Muirhead, G. P. S. Occhialini, and C. F. Pow- ell, PROCESSES INVOLVING CHARGED MESONS , Nature 159 , 694 (1947). 3 [19] C. M. G. Lattes, G. P. S. Occhialini, and C. F. Powell, OBSERVA- TIONS ON THE TRACKS OF SLOW MESONS IN PHOTOGRAPHIC EMULSIONS. 1 , Nature 160 , 453 (1947). 3 [20] G. D. Rochester and C. C. Butler, EVIDENCE FOR THE EXISTENCE OF NEW UNSTABLE ELEMENTARY PARTICLES , Nature 160 , 855 (1947). 3 [21] A. Pais, Some Remarks on the V -Particles , Phys. Rev. 86 , 663 (1952). 4 [22] M. Gell-Mann, Isotopic Spin and New Unstable Particles , Phys. Rev. 92 , 833 (1953). 4 [23] M. Gell-Mann, The Interpretation of the New Particles as Displaced Charged Multiplets , Nuovo Cimento 4 Suppl. 2 , 848 (1956). 4 [24] T. Nakano and K. Nishijima, Charge Independence for V -particles , Prog. Theor. Phys. 10 5 , 581 (1953). 4 [25] M. Gell-Mann and Y. Ne’eman, The Eightfold Way (Benjamin, 1964). 4 [26] V. E. Barnes et al., OBSERVATION OF A HYPERON WITH STRANGENESS -3 , Phys. Rev. Lett. 12 , 204 (1964). 4