A discussion on the present state of the theory of Natural Selection / D.M.S. Watson, N.W. Timoféeff-Ressovsky, E.J. Salisbury, W.B. Turrill, T.J. Jenkin, R. Ruggles Gates, R.A. Fisher, C. Diver, G.D. Hale Carpenter, J.B.S. Haldane, E.W. MacBride, R.N. Salaman // Proceedings of the Royal Society of London. Ser. B, Biological Sciences. – 1936. – Vol. 121, no. 820. – P. 43-73. – From the content: Some genetic experiments on relative viability / N.W. Timoféeff-Ressovsky. P. 45-47.