208 



SUBJECT INDEX 



Cleavage, spiral 52 



— , Triton 18, 36, 37 



— , under compression 35, 36 



Coat, surface 103 



Colloid particles 43, 44 



Competence 116, 132, 138 



Competition, physiological 126, 



148, 172 

 Concentration of evocator 145, 



146 

 Connective tissue 158, 173, 174 

 Constriction of eggs, Amphibia 



17, 18, 29, 35, 36, 37, 84 

 Contact phenomenon 135 

 Cornea 129, 135 

 Comification 139 

 Cortex 5, 22, 48, 49, 60, 62, 



119, 182, 190 

 — , Amphibia 41, 42 

 — , attraction 10, 50 

 — , composition 21 

 — , in fertilisation 13 et seq. 

 — , structure 34 

 Cortical factor 105 



— field 49, 105 



— granules 14 



— reaction 13 et seq., 19, 20, 21 

 Corymorpha 168, 169 

 Crepidula 24 



Crescent, grey 40, 41, 49, 58, 



95, 105 

 — , yellow 58 

 Crossing, species 75 et seq. 

 Cumulus oophorus 11, 190 

 Cuttlefish 39, 40, 154 

 Cyclopia 47, 131, 136, 190 

 Cytaster 22, 23, 190 

 Cytoplasm, acidity 43, 44 

 — , properties 10, 21, 69 

 — , structure 28 et seq. 



De- differentiation 135, 154, 162, 



163, 167, 172, 173, 174, 190 

 Dendmaster 49 

 Denervation 173 

 Dentalium, cleavage 55, 57 

 — , isolation of blastomeres 56 



— , removal of polar lobe 56, 57 

 — , trochophore 56, 57 

 Dentine 139 

 Depolarisation 10, 190 

 Determinants 35, 64, 190 

 Determination 46, 47, 49, 50, 

 54, 60, 61, 84, 108, 111 et 

 seq., 131 et seq., 174, 177 et 

 seq., 190 



— of bilateral symmetry 41 

 — , labile 178 

 Development, course of 1 et 



seq., 4 et seq. 



Dicentry 22, 25 



Differentiation 2, 6, 35, 60, 65, 

 66, 81, 85, 103, 107 et seq., 

 131 et seq., 152 et seq., 157, 

 162, 163, 165, 167, 174 et seq., 

 179, 180, 190 



Diffusion 79, 119, 126, 135, 145, 

 147, 164, 187 



Digits 141, 142 



Diploid 8, 67, 71, 190 



Discoglossus 138 



Disintegration 172 



Division, cell 1, 8, 9, 35, 36, 66, 

 67, 173 



— , nuclear 8, 23, 24, 35, 64, 

 66, 67, 76, 78 



— , planarians 171 



Dominance 126, 170, 171, 172 



Dragon fly 69 et seq. 



Drosophila, chromosome deficien- 

 cies 74 



— , gene hormones 87 et seq. 



Duplicitas cruciata 54 



Dyads 8 



Ear-field 137, 138 

 placode 136 



— -vesicle 113, 115, 117, 134, 

 136 et seq., 144, 146 



Earthworms, regeneration 161, 



164, 169 

 Echinarachnius 14 

 Ectoderm 46, 93 et seq., 190 

 Ectoplasm 12, 58, 65, 190 



