216 



SUBJECT INDEX 



Transplantation, heteroplastic 

 110, 111, 116, 120, 133, 134, 

 140, 142, 155, 167, 191 



— , xenoplastic 116, 134, 136, 

 138, 139, 195 



Triploid 71, 72, 195 



Triton 18, 22, 37, 79, 80, 84 

 85, 101, 110, 111, 112, 116, 

 122, 123, 133, 139, 140, 141, 

 142, 143, 144, 146, 152, 176 



Triturus 80, 81, 85 



Trochophore 56, 195 



Trophic influence of nervous 

 system 157 



Trypaflavin 22, 23, 25 



Tryptophane 89 



Tubifex 50 et seq., 57, 60 



Tubularia 163 



Ultracentrifugation 34, 195 

 Ultraviolet light 53, 71 

 Urodeles 100, 134, 136, 138, 

 139, 142, 143, 144, 174 



Vascular system 158 et seq. 

 Vermilion 87 et seq^ 

 Veins 159 



Viscosity 10, 21, 33, 83, 84 

 Vital force 184 



— stains 99 

 Vitalism 184, 185 

 Vitamins 61, 195 

 Vitelline membrane 12, 14 

 Vitreous body 130 

 Vitro, in 153, 195 



Wasp 87, 89 



Worms 15, 33, 50, 51. 92, 162, 



169 

 — , polar lobe 55 et seq. 



X-chromosome 74, 195 

 X-rays 161, 173, 176 



Yolk 7, 33, 39, 44, 48, 154 

 factor 105 



— -gradient 43, 48, 89, 105 

 plug 96 



sac 152 



— , shifting 44 



Zygote 5, 7, 195 



— nucleus 17, 37, 39, 64, 70, 

 71, 91, 195 



