1. Altman, J.: Postnatal growth and differentiation of the mammalian brain, with implications for a morphological theory of memory; in Quarton, Melnechuk and Schmitt, The Neurosciences, pp. 723–743 ( Rockefeller University Press, New York 1967 ).
2. Altman, J. and Das, G.D.: Autoradiographic and histological evidence of postnatal hippocampal neurogenesis in rats. J. comp. Neurol. 124: 319–336 (1965).
3. Ashton, N., Ward, B. and Serpell, G.: Effect of oxygen on developing retinal vessels with particular reference to the problem of retrolental fibroplasia. Br. J. Ophthal. 38: 397–432 (1954).
4. Balentine, J. D.: Pathogenesis of central nervous system lesions induced by exposure to hyperbaric oxygen. Am. J. Path. 53: 1097–1109 (1968).
5. Bean, J. W.: Effects of oxygen at increased pressure. Physiol. Rev. 25: 1–147 (1945).