[55]. Ibid., p. 139.
[56]. Ibid., p. 140.
[57]. More Worlds than One, pp. 141–142.
[58]. Ibid., p. 151.
[59]. Ibid., p. 152.
[60]. Ibid., p. 153.
[61]. Ibid., pp. 44–47.
[62]. More Worlds than One, p. 47.
[63]. Azoic signifies those primary rocks which contain no traces of organic life, no remains of plants or animals.
[64]. More Worlds than One, p. 52.