VASCULAR SYSTEM VISCERA 



see also Circulation; Heart (& 



great vessels); specific Mammalia 



organs, etc. 



Babayeva 

 Sidorova 



X-IRRADIATION 



see also Irradiation; Radio- 

 mimetic agents 



Kilarski 



Kistler 



Lansdown 



Peacock 



Weiss 



Turbellaria 



Watts 

 Pedersen 



XANTHOPHORES 

 see Chromophore(s) 



YOLK SAC 



see Embryonic membranes 



183 



