212 



SUBJECT INDEX 



Molluscs, cleavage 51 

 — , polar lobe 55 et seq., 66 

 Monaster 19 et seq. 

 Monospermy 14, 193 

 Morphailaxis 165 et seq., 175, 



193 

 Morphogenesis 174, 193 

 Mosaic 6, 28, 60, 62, 91, 137, 

 149, 151 



— eggs 32, 63 



— stage 151 et seq. 

 Moth 87 

 Motility 99 



Motor nerves 157, 174 



— neurones 156 



Mouth 94, 98, 139, 146, 147, 166 



— plate 139 



Multiplicity, extensive 3, 4, 31, 

 38, 39, 63, 182, 183, 191 



— , intensive 3, 4, 32, 34, 39, 63, 

 183, 188, 192 



— , spatial 2 et seq., 5, 27, 28, 

 33, 34, 35, 50, 63, 91, 106, 

 126, 128, 149, 182, 183, 184 



Muscle 108, 157, 158, 173, 176, 

 181 



Mussel 23, 24 



Mutants 87 et seq., 193 



Mutation 75, 87, 89, 90, 193 



Mytilus 23, 24 



Narcotics 164, 168 

 Negativity, wave of 14 

 Nematodes 33, 68 

 Neoblasts 161, 162, 193 

 Neo-epigenesi'S 28, 193 

 Neo-evolutio 3, 193 

 Neo-preformation 28 

 Nereis 10, 14 

 Nerve 156, 157, 173, 174, 175 



— cord 164 



— fibres 156, 174 



Nervous system 156 et seq., 174 

 Nervus ischiadicus 175 

 Neural crest 138, 140, 147 



— folds 80, 81, 98, 138 



— plate 98 et seq., 109 et seq., 

 128, 130, 131, 138, 145 



Neural plate, determination 



111 et seq. 

 , secondary 112 



— tube 98, 111 et seq., 128, 136 

 Neurospora 90 



Neurula 109, 112 et seq., 132, 



138, 193 

 Neurulation 98 et seq., 102, 106 



et seq., 128, 146, 193 

 Neutral red 43 

 Newts 22, 139, 155, 159, 172, 



175 

 — , exogastrulation 102 

 — , fusion of eggs 30 

 — , heterospermic merogony 



84 et seq. 

 — , hybridisation 79 et seq. 

 — , isolation of blastomeres 29, 



35 

 — , pronuclei 17 et seq. 

 — , retarded nucleation 35 



et seq. 

 Nile blue hydrochloride 43 

 Notochord 58, 59, 98, 100, 103, 



108, 111 et seq., 120 et seq., 



126, 193 

 Nuclear factors 64 et seq. 

 Nucleoplasm 10, 11, 22 et seq., 



65, 193 

 Nucleotides 118 



Nucleus 3, 5, 7, 8, 23, 25, 26, 47 



— of oocyte 8, 10, 19 et seq., 58 

 — , role in development 34 et 



seq., 64 et seq. 



Oil 33 



Olfactory organs 135 et seq. 



— pits 117, 134, 136, 144, 145, 

 146, 156 



— placodes 136 

 Oligonucleotides 119 

 Omentum 152, 193 

 Omnipotent 109, 162, 193 

 „Onde de g^lification" 26 

 Oocyte 7, 8, 9, 10, 40, 58, 65, 



66, 119, 193 

 Oogonium 7, 193 

 Optic nerve 129 



