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2. Boycott, B. B. (1974) Aspects of the comparative anatomy and physiology of the vertebrate retina. InEssays on the nervous system;a festschrift for Professor J. Z. Young (edited byBellairs, R. andGray, E. G.), pp. 233?257. Oxford: Clarendon Press.
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4. Boycott, B. B. andKolb, H. (1973) The connexions between bipolar cells and photoreceptors in the retina of the domestic cat.Journal of Comparative Neurology 148, 91?114.
5. Cajal, S. R. (1892) La retine des vert�br�s. The English translation of Greef (1894) has been used here:The structure of the retina (1972). (edited byThorpe, S. A. andGlickstein, M.), Charles C. Thomas: Springfield, Illinois.