OTHER METHODS OF STUDYING VISUAL PIGMENTS 



Dartnall, H. J. A. (1953). The interpretation of spectral sensitivity 



curves. Brit. med. Bull, 9, 24-30. 

 Denton, E. J. and Wyllie, J. H. (1955). Study of the photosensitive 



pigments in the pink and green rods of the frog. /. Physiol, 111, 81-89. 

 GuNTER, R., Harding, H. G. W. and Stiles, W. S. (1951). Spectral 



reflexion factor of the cat's tapetum. Nature, Land., 168, 293-294. 

 Hagins, W. a. and Rushton, W. A. H. (1953). The measurement of 



rhodopsin in the decerebrate albino rabbit. /. Physiol., 120, 61 P. 

 Hubbard, R. (1954). The molecular weight of rhodopsin and the nature 



of the rhodopsin-digitonin complex. /. gen. Physiol., 37, 381-399. 

 KuHNE, W. (1878). On the photochemistry of the retina and on visual 



purple. Ed. with notes by M. Foster, London, Macmillan. 

 0STERBERG, G. (1935). Topography of the layer of rods and cones in the 



human retina. Acta Ophthalm. SuppL, 6, 1-103. 

 Rushton, W. A. H. (1952). Apparatus for analysing the light reflected 



from the eye of the cat. /. Physiol, 117, 47P. 

 Rushton, W. A. H. (1953a). Aspects of retinal physiology. Pub. Inst. 



Bioffsica, Rio. 

 Rushton, W. A. H. (1953b). The measurement of rhodopsin in the living 



eye. Acta. Physiol, scand., 29, 16-18. 

 Rushton, W. A. H. and Campbell, F. W. (1954). Measurement of rho- 

 dopsin in the living human eye. Nature, Lond., 174, 1096-1097. 

 Rushton, W. A. H., Campbell, F. W., Hagins, W. A. and Brindley, G. S. 



(1955). The bleaching and regeneration of rhodopsin in the living eye 



of the albino rabbit and of man. Optica Acta, 1, 183-190. 

 Wald, G. (1938). On rhodopsin in solution. J. gen. Physiol, 21, 795-832. 



(This reference, quoted by Denton and Wyllie, (1955), gives the mean 



in situ density of visual purple in the bull frog retina as 0-178.) 

 Wald, G., Brown, P. K. and Smith, P. H. (1955). lodopsin. /. gen. 



Physiol, 38, 623-681. 

 Weale, R. a. (1952). Tapetal reflexion and its influence on some visual 



functions of the cat. J. Physiol, 118, 43P. (Oral communication.) 

 Weale, R. A. (1953a). The spectral reflectivity of the cat's tapetum 



measured in situ. J. Physiol, 119, 30-42. 

 Weale, R. A. (1953b). Photochemical reactions in the living cat's retina. 



J. Physiol, 122, 322-331. 

 Weale, R. A. (1953c). Slow and rapid regeneration in the living cat's 



retina. /. Physiol, 122, IIP. 

 Weale, R. A. (1955). Bleaching experiments on eyes of living guinea- 

 pigs. /. Physiol, 127, 572-586. 



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