SUBJECT INDEX 



Albinism, 86 



Anterior chamber, 67, 70 

 Area centralis retinae, 66, 71, 95, 104, 

 108, 110, 111, 117, 118 



Bulbus oculi, 2 



Carotenoids, 122, 124, 126, 130 

 Cells, amacrine, 24-28, 31, 32, 35, 36, 

 50,51 

 association, 24 



bipolar, 24-28, 30-33, 35, 36, 50, 51 

 brush, 31-33 

 centrifugal, 31, 35, 36 

 centripetal, 32, 35, 36 

 diffuse, 32, 33, 35 

 flat, 31-33 

 midget, 31-35 

 mop, 31-34 

 ganglion, 24-28, 30-36, 50, 84 

 diffuse, 31, 33, 34 

 midget, 31, 34 

 shrub, 31 

 horizontal association, 24, 25, 31, 



35, 36, 50, 51 

 "myoepithelial," 9 

 spider, 28 

 supporting, 25-28 

 visual (see cones and rods) 

 Choroid, 6 



lamina vitrea of, 16 

 specialization of, 6, 7 

 Ciliary body, 7 



ciliary processes of, 7, 8 

 muscles of, 8-10 

 relative size of, 8, 9 

 variations of, 8, 9 

 Ciliary muscle, 8, 10, 67, 70 

 Clivus, 110, 118 

 Cones, classification of, 45-47 

 conducting systems, 30-36 

 connections (endings) of, 25, 45 

 differentiation of, 50-58 

 double, 27, 28, 42, 61 

 function of, 37-39 

 in relation to visual acuity, 93-103 



measurements of, 20, 22, 23, 39, 40 



movements of (see photomechan- 

 ical responses) 



nuclei of, 39, 84, 85 



number of, 41 



of foveal region, 22, 23, 39, 40, 103 



origin of, 49 



photomechanical responses of, 47 



photopigment of (see iodopsin) 



size of, 20, 94, 95, 103 



staining reaction of, 46 



structure of, 39, 42 



thresholds of, 37, 94 



twin, 26, 42 

 Cornea, measurements of, 70 



of nocturnal animals, 3, 5, 6, 67, 70 



refractive power of, 5 



shape of, 5 



size of, in various vertebrates, 5, 6, 

 67-70 

 Corona ciliaris (pars plicata), 8 



Dark adaptation, 121, 144-150 

 Diplosome, of cones and rods, 53, 54 

 Diurnal rhythms, 83 

 Double retina of Parinaud, 37 

 "Droplets" of Kolmer, 129, 130 

 in relation to dark- and light-adap- 

 tation, 131, 135-142 

 in relation to pigment epithelial 



layer, 130, 132 

 in relation to retinene, 133-142 

 in relation to rhodopsin, 87, 130, 



132-136, 140, 141 

 in relation to vitamin A, 132-142 

 nature of, 133 

 - occurrence of, 130-132 

 origin of, 130, 132 

 reaction to illumination changes, 



135-142 

 reaction to temperature changes, 

 135-142 

 Duplicity theory, 37-39, 73 



Ellipsoid Gentiform body), 88, 89 

 of cones, 42, 56, 90 

 of rods, 43, 44, 56, 89 



181 



