308 



SUBJECT INDEX 



Cytology of melanocyte 280 

 Cytoplasmic structures 45 et seq. 

 Cytoskeleton 114 



Degrees of keratinization, 64, 68, 272 



— method to estimate 272 

 Density and crystallinity 194 

 Dental keratin 78, 108 

 Dentritic cells, 277, 278 



Dermal changes during hair growth 



152 

 Dermis 53 



— configuration of 55, 81 

 Dermoepidermal junction 53, 86, 96 



— formation of 88 

 Desmosomes (dermo-epidermal) 41, 



42 (Fig. 21), 93 



— composition 84 



— in light microscope 83 



— of basal layer cells 83 

 Desoxyribonucleic acid (DNA) 54, 



80, 109, 177 



— in hair follicle 219, 220 (Fig. 97) 

 Desquamation of epidermal cells 22, 



134, 231 

 Deuterium exchange 200 

 Development of stability in hair follicle 



214, 215 (Fig. 92), 216 (Figs. 93 



and 94) 

 Dichroic ratios and amorphous phase 



198, 199 



— after deuterium substitution 199 



— in infra-red 196 



Dichroism of infra-red absorption and 

 structure of a-keratin 176, 196 et 

 seq. 



Differentia in cytoplasm 48 



Differentiated epidermal tissues 94 

 et seq. 



Differentiation 44 



— of epidermal cells 60, 90 et seq. 



— of surface organelles 44 

 Difficulties in defining keratins 30 



et seq. 

 Diffusion of pigment from grafts 278 

 Digital tips 69 

 Directional friction, and the hair 



cuticle 73 



— and felting 73 



Disintegrated wool, electron microscopy 

 of 246 



Dispersion of optical rotation and chain 



configuration 195, 198 

 Distribution of disulphide groups in 



hair follicle 218, 220 (Fig. 97) 



— of fibre types in vertebrates 23, 

 25 (Fig. 12) 



— of fundamental fibre types 22 

 et seq. 



Disulphide bonds, and elasticity 252 



— and strength of wool fibres 254 

 (Fig. 107) 



— content of stratum corneum 230 

 Diurnal cycle(s) 136 



— absence of in hair follicle 137 



— of mitosis in epidermis 148 

 Dopa 280 



Drude's equation 195 



Earthworm cuticle 124,130 

 Ecdysis 22, 160 



— horns and scales 67 

 Egg case of mantids 126 



— shell membranes 107 (Plate 18B) 

 Elastic behaviour of wool and hair 172 



— properties, and the structure of 

 hair 172 et seq. 



— of wool and humidity 250 (Fig. 



103) 



and temperature 251 (Fig. 104) 



and pH 253 (Fig. 105) 



Electron microscopy and cytology 

 34 et seq. 



— methods 35 



— of cuticle 265 (Plate 20A) 



— of fibrous keratin 246 (Plates 12, 



13, 14A, 15, 16) 



— of skin 94, 223 (Plates, 4B, 7, 8, 



9, 17, 22) 

 " Eleidin " 95 (footnote) 

 Embryonic cells, generalized structure 



of 81, 82 

 Enamel of teeth, keratin in 78, 108 

 End groups in keratins 161, 162 



(Table 8), 163 



— methods 163 

 Endocuticle of hair 265 

 Endoplasmic reticulum 46, 114 



— nomenclature 48 (Fig. 23) 

 Entropy and fibre extension 257 



— and molecular configuration 255 



