INDEX. 517 



Xiphisternum: Rabbit, 302 

 Xiphoid process : Fowl, 409 



Yolk-cell : Liver-fluke, 42 



Yolk-gland : Liver-fluke, 39 ; Tapeworm, 48 



Yolk-reservoir : Liver-fluke, 39 



Yolk-sac : Chick, 477, 480 



Yolk : Hen's egg, 468 



Zygapophysis, see Vertebra 



Zygomatic arch : Rabbit, 316 



Zygomatic process : Rabbit, 315, 316 ; Fowl, 403 



Zygote : Coccidium, 17 



THE END 



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 Colchester, London & Eton, England. 



