SUBJECT INDEX 



315 



Soluble products, by oxidation of 

 keratins 238 et seq. 



— by reduction of keratins 240 et seq. 



— of partial keratinization 233 

 Specializations of opposed surfaces 40 



et seq. 

 Specialized appendages of epidermis 



66 et seq. 

 Specific rotation (definition) 195 

 Spherulites of insulin 130 

 Spirals and whorls of fibrils in hair 



cortex 224 (Plate 14 A) 

 Stability, histochemical tests for in hair 



follicle 214 et seq. 

 Stabilization 19 et seq., 24, 51, 241 



et seq. 

 Stratum corneum, constituents of 228 



— structure of 225 (Fig. 98), (Plate 



17), 229 (Fig. 99) 



— granulosum 95, 228, 229 (Fig. 

 99) (Plate 23A) 



— hicidum 95, 230 (Plate 22) 

 Stress-strain curve(s), for hair 172 



et seq., 249 et seq. 



— for wool, interpretation of 193 



— interpretation of by Astbury and 



Woods 174 

 Stripping of epidermis as growth 



stimulant 148 

 Structural colours 276 

 Structure of residues remaining after 



extraction of keratins 271 

 a-Structure, structural proposals 175 

 Sulphide solutions of wool 236 

 Sulphur, content of keratoses 239 



(Table 15) 



— content of skin 230 



and nuclear synthesis 264 



— level of entry into follicle 232 et seq. 

 Sulphydril reagent (Bennett) 29 



— - reactions in, hair follicle 220 (Fig. 

 97c) 



claws and horn 217 (Fig. 95) 



Supercontraction 255-8 



— in copper solutions 259 



— in lithium bromide 259 



— in phenol, etc. 259 

 Supermolecular organization of fibrous 



tissues 123 

 Surface " repertoire " of cells 62 



Surface specializations of cells and 

 tissue formation 26 (Fig. 14), 86, 

 87 (Fig. 38), 90 et seq., 97 et seq. 



Symphysodon discus and mucin secretion 

 60 



Synthesis of fibres, steps in 125 (Fig. 

 54) 



cytoplasmic pattern of 121 



— ■ keratin in hair bulb 101 et seq., 

 223 etseq. (Plates 11, 12) 



— melanins and melanoproteins 281 



(Fig. 116) 



— peptide bonds 116 et seq. 



— proteins 93 et seq., 115 et seq. 



in fibre forming systems 121 



in hair follicle 96 et seq. (Fig. 



42) 



in retaining cells 1 20 et seq. 



in secreting cells 116 



Synthetic polypeptides, compared with 

 a-proteins 183 



— a-/? transformation in 199 



Tactoids and fibres 130 

 Tanning 19 et seq., 27 



— and resistant membranes in keratin- 



ized tissues 262 

 Teeth and hair 74 



— development of 74 (Fig. 32) 

 keratin in enamel of 78, 108 



Theories of growth 138 et seq. 

 Thickness of epidermis 66,134 

 Thioglycollic acid as reducing agent 



236, 240 

 Thiol (SH), and disulphide groups in 



hair follicle 217 et seq., 220 (Fig. 



97c) 



— reactions, in horns, nails and claws 



217 (Fig. 95) 



in feather 218 (Fig. 96) 



Thyroxin, metamorphosis and keratin- 

 ization 52 

 Tissue culture, and differentiation 44 



— keratinization in 56, 57, 63, 64 



— types of cells in 57 

 Tonofibrils 43, 94 



" TPA " stain, after Leblond et al. 



43 

 Transference of pigment to keratinizing 

 cells 278 



