SUBJECT INDEX 



311 



Ichthyosis vulgaris 64 

 Inaccessibility and crystallinity 191 

 Infra-red spectra, and chain configur- 

 ation 197, 198 (Table 12) 



— and structure 196 



— of feather 208 



— of keratins 197 (Fig. 83) 

 Inhibitors of growth 140 et seq. 



— as hormones 143 



— and growth hormones as mitotic 

 controls 148 (Fig. 61), 149 



Inner root sheath of hair follicle, fine 

 structure of 95 et seq., 226 et seq. 



Insect proteins (a and /? types) 203 

 et seq. 



Insulin (fibrous) 29, 128 



Interaction between dermis and epi- 

 dermis 61 (Fig. 27), 86 et seq., 87 

 (Fig. 38), 88 (Fig. 39) 



Intercellular adhesion 40, 44, 81, 84 

 et seq., 90 et seq., 99 et seq., 98 (Fig. 

 43), 99 (Fig. 44) 



— — and differentiation 60, 61, 90, 



99 



— apparatus during keratinization 263 



— " bridges " (desmosomes) 42, 83, 



94, 260 



— cements 85 



— in electron microscope 86 



— contacts in hair follicle 99 (Fig. 



44), 100 

 Interdigitation of membranes 43, 263 

 Interfollicular competition in sheep 



149, 150 

 Internal energy and entropy 257 

 Intracellular differentiation in hair 



bulb 100 

 Invertebrates, keratins of 30 



— tanning in 27 



Kerateines and keratoses 241 et seq., 

 244 



compositions compared 245 



(Table 19) 

 Keratin, A and B (Unna) 2, 271 



— chemical analyses of 6 (Fig. 2), 

 7 (Table 1) 8 (Table 2), 9 (Table 

 3), 161 (Tables 7, 8), 241 (Fig, 100), 

 242 (Table 17), 243 (Table 18), 245 

 (Table 19) 



Keratin definition of 2, 21, 27 et seq. 



— hard 64 et seq., 210 



— hard and soft 64 et seq., 65 (Table 



5), 134, 228, 272 et seq. 

 Keratin, hard and soft, in claws and 

 hoofs 69, 273 



— histological tests for 29 



— in hair cuticle cells 101 (Plate 20), 



265 



— in tooth enamel 78, 108 



— " pearls " 275 



a-Keratin pattern (Macarthur) 166 

 (Fig. 68) 



— wide angle 15, 170 et seq. 



— characteristic 1*5 A spacing of 15, 



176, 182 

 /9-Keratin, as a pleated sheet 179, 180 



— in feather follicle 69, 104 



— in supercontracted fibres 258 

 Keratinization in bird skin 63, 231 



— ■ in curved follicles 157 



— in skin and scales of rodents 231 



— in hair follicle 210 et seq. 



— not a degenerative phenomenon 56 



— process 210 et seq. 



— — definition of effects 210 



— zone 55 et seq. (Fig. 25), 56, 157 



(Fig. 66), 211, 223 



Keratinized cysts and epidermal tu- 

 mours 6, 275 



Keratohyalin 65 (Table 5), 95, 228 

 et seq. 



— and trichohyalin 226, 227 



— conversion into fibrils 230 et seq. 



(Plate 21) 



— granules in stratum granulosum 228 

 Keratoses (a and y) 237, 238, 240 



(Table 16) 

 k, m, f . . . proteins 15, 19 

 Krebs cycle intermediates and mitosis 



136 



Lanthionine 237 



Levels of organization 3, 4 (Fig. 1), 10, 



123 etseq., 125 (Fig. 54) 

 Lillie and Juhn's hypothesis 105 



(Fig. 47) 

 Limulus 30 



