SUBJECT INDEX 



313 



Non-keratinous residues, morphology of 



266 (Fig. 110),268(Fig. 112) 

 Nuclear membrane 48,112 



— in keratin cells (Plate 4C), 80, 81 



(Fig. 36) 



— pores 48, 112 (Plate 4C) 

 Nuclei, fate of in keratinizing tissues 



4,263 

 Nucleic acids 109 



— distribution in hair follicle 112, 



219, 220 (Fig. 97) 

 Nucleoli 80, 81 (Fig. 36), (Plates 7, 8) 

 Nucleus 48, 80, 81 (Plates 7, 8, 12, 13) 



— and protein synthesis 109 et seq., 



110 (Fig. 49), 264 



— pores Plate 4C 



Oestrogens and cell division in epider- 

 mis 134 



Optical rotation and chain configuration 

 194 et seq. 



Orders of magnitude 3, 4 (Table 1) 



Organization of fibrous tissues 129 

 et seq. 



Orientation in hair follicle by X-ray 

 diffraction 214 



origin of 131 



— of fibrils in epidermis 231 (Plates 



17, 22) 



— of fibrous keratin in hair follicle 



210 (Fig. 90), 211 

 Ovokeratin 30, 107 (Plate 18B) 

 Ortho- and paracortex of wool fibres 



268 (Fig. 112), 273 

 Osmium tetroxide, fixation by 35, 36 



(Fig. 17), 112 



— reaction with cystine 35, 36, 247 



(Fig. 102) 

 Osmoregulation and cuticles 50 (Fig. 



24) 

 Oxidation of keratins to keratoses, etc. 



238 et seq. 



— as histochemical test 29 



Particle covered membranes (endo- 

 plasmic reticulum) 46 



— in secretory cells 111 (Plate 10A) 

 PAS test 54 



— on hair follicle 220 (Fig. 97), 221 



Patterns of hair growth and control 



150 et seq. 

 Peptides from silk 180 



— structures of 7, 176 



Peracetic acid as reagent for oxidizing 



keratins 238 

 Periodic changes in plumage and pelt 



144 



— growth, and cyclic activity 143 et seq. 



— of feathers 1 56 et seq. 

 Peritrophic membrane 124 

 Phenolases 280 

 Pheomelanin 276, 282 

 Phosphatases 222 



Phospholipid membranes 35, 46, 49 

 et seq. 



— myelinic forms 46 



Phylogeny, and fibre type 22, 25 

 (Fig. 13) 



— and keratinization 22, 49 et seq. 



— of hair 72, 73 



Physicochemical properties and keratin- 

 ization 249 et seq. 



Pigment granules 276 et seq. 

 ■ — chemical stability of 278 



— internal structure of size 279 (Fig. 



115) 

 Pigmentation 276 

 Pilosebaceous unit 60, 77 

 Plasma membrane 37 et seq. 



— definition of 41 

 Platypus hair 67, 77 



Pleated sheet configurations 179, 180 



(Fig. 74) 

 Polymerization of keratin 234 

 Polypeptides, synthetic and a-structure 



183 

 Porcupine quill, and 1*5 A spacing 182 



— fine structure 247, 248 



— X-ray pattern of 167 (Table 9) 

 Precursors of keratin 126,211 

 Prekeratin, properties of in germinal 



layers 211 et seq. 

 Prekeratins 235 



Prickle cells and desmosomes 94 

 Primary and seconday hair follicles 72, 



75, 78 (Fig. 35), 150 

 Proliferating tissues 133 



