3r4 INDEX. 



Page Page 



Xiphias 67 Zaptis 184 



Xiphodon 176 Zebra 173 



Xiphoid Cartilage 147 Zebu 179 



Zenaldura 140 



Yak 179 Zonites 234 



Yellow-Cells of Radiolaria. . . 255 Zoophytes 245 



Yolk-Sac 49 Zygomatic Arch 148 



Printed bv The Copp, Clark Comtany, Limited, Toronto. 



