SUBJECT INDEX. 



477 



Vtrmea, 404 

 Fermeias, 366 

 Vermilia, 323 

 Vertebrates, cranial, 89 

 Vespa, 260 

 Voice-organs, 360 

 Valuta, 450 

 Vortex viridis, 81 



Vorticellce, 28, 29, 249, 247, 296, 375, 

 377, 407 



Waldheimia, 276 



Water-vascular systems, 35, 187, 223, 



240, 243 

 Web-spinning, objects of, 99 



Wheel-animalcules, 35 

 Worms, blood of, 153 



Xanthine, 14 



Xanthophyil, 132, 134, 135, 163, 165 

 Xanthoproteic acid, loi 

 Xiphosura, 50, 63 



"Yellow cells," 80, 81, 215-219 



ZOANTHODEMES, 33 



Zoophytes, 234 

 Zygnaina, 433 

 Zyynema, 12 



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 LONDON AND EDINBURGH 



