214 



SUBJECT INDEX 



Proteins 47, 119 



— in cytoplasm 33 



— in egg cortex 21, 34 



— in fertilisation membrane 14 



— in yolk 7, 44, 48 



— , metabolism 47, 89, 118 

 — , structure 47 

 — , synthesis 34, 47, 65 

 Protoplasm, structure 33 

 Psammechinus 76, 77, 78, 83, 94 



Rabbits 152, 159 



Rana 40, 79, 116, 132, 133 



Rats 152 



Reaction field 132 



— system 114, 120, 135, 144, 

 145, 147, 194 



Reactivity 145 



Realisation of nuclear factors 



64 et seq., 92 

 Redox dyes 171 



— potential 43 

 Reduction division 8, 194 

 Regeneration 2, 6, 126, 151, 152, 



158, 160 et seq., 182, 194 



— blastema 162, 165, 166, 172, 

 173, 174 



— bud 160, 162, 169, 172, 174, 

 177, 178, 179 



— cells 161, 162 



— cone 179 



— , total 172, 174, 175 

 Regional differentiation 115, 



119 

 Regulation 32, 63, 67, 121 et 

 seq., 148, 151, 152, 184, 194 



— eggs 32, 63 



— , in fertilisation 20 et seq. 

 Removal of organ primordia 



151 et seq., 175 

 Reorganisation 163, 165, 166, 



194 

 Reproduction, sexual 7 

 — , vegetative 1, 171, 195 

 Respiration 79, 159 

 Respiratory quotient 118 

 Restitution 160, 162, 182 

 Retarded nucleation 36, 37 



Retina 129, 131, 132, 147, 149, 



178 

 Reversal of polarity 161, 166 

 — of symmetry 143 

 Revitalisation 79 

 rH 43, 63 

 Ribonucleic acid 25, 33, 34, 65, 



79, 107, 118, 119 

 Ribonucleoproteins 119 



Sabella 162, 165, 166, 168 



Salts 33 



Sea urchin 10, 183 



artificial parthenogene- 

 sis 18, 19, 21, 25, 26 

 cell size and nuclear size 

 66 



centrifugation 49 

 cleavage 44 

 — under compression 



35, 36 

 combinations of blasto- 

 meres 45 

 double fertilisation 

 71 et seq. 



fertilisation 11, 12, 13, 

 14, 15, 16 



fusion of eggs 30 

 gastrula 44, 45 

 gastrulation 93 et seq, 

 gradient fields 44 et seq. 

 heterogeneous fertili- 

 sation 23, 24 

 heterospermic merogony 

 82 et seq. 



hybridisation 76 et seq. 

 influence of chemicals 

 46 et seq. 



isolation of blastomeres 

 28, 29, 44 



skeleton of plutei 77, 

 83, 84, 87, 95 

 metabolism 47 

 parthenogenetic mero- 

 gony 66 



pluteus 29, 30, 44, 45, 

 77, 83, 95 



