728 



INDEX 



Wuter-lizards, 365 



Water opossum, 494 



Water-voles, ^0{i 



Water-newt, 294 



Weasels, 181, 484, 571 



Weaver, 227 



Webei', Max, (584 



Weberian apparatus, 238* 



Webs, 266, 422 



Weismann, A., 689 



Weka, 444 



Wells, W. C.,683 



Whale-bone — See Baleen 



Whalebone Whales, 48(t, nOl. a 16, oSl, 



533, 557, 567, 606 

 Whales — See Cetacea, 479 

 Wheel-organ of Amphioxus, 45* 

 White, Gilbert, 675 

 White matter, 98*, 99 

 Whiting, 221 

 Wiegmann, 681 

 Willemoes-Sulnn, 684 

 Willughby, F.. 672 

 Wing of Birds, 379, 380 

 Wing-coverts — See Pterylosis, 385 

 Wolff, C. F., 674 

 Wolffian body, 118*, 119 

 Wolffian duct, 119, 120' 

 Wombats, 479, 496, 521. 524. 562 

 Woodpeckers, 417, 422, 429. 434 

 Wotton, Edward. 668 

 Wrasse, 222, 225. 234 



X, 



.ENOPHANKS, 679 



Xevopus, 294, 298. 303, 304 

 Xe)iosanrid(i\ 369 

 Xiphiplastroii, 347 

 Xiphi-stcrnuni, 272, 273 



Y 



Y 



AK, 638 

 Yolk-idug, 256, 290 

 Yolksac, 185, 216. 256 

 Yolk cells, 288" 



z. 



z 



(Er.RA, 482, 503, 599 

 Zeuglodon, 605, (540 

 Zeuglodonta — See Archaioceti 

 Zoiirres, 241 

 Zona radiata, 587* 

 Zonary placenta, 595* 

 Zoo-geograpliical regions, 628, 634 



lations of, 634 

 Zoiiiiri(hi\ 369 

 Zi/(i<tna, 17<i^ 

 Zygantrum. 343* 

 Zygapophysis, 201*, 247 

 Zygomatic arch, 511* 

 Zygomatic process, 452 

 Zj'gosphene, 343* 



Re- 



R. CLAY AND SONS, LTD., BREAD STREET HU.I,, E.C., ANM EONOAY, SUFFOLK. 



