320 



INDEX 



Weismann, 71, 72 ; proved nuclei of 

 egg containfa essential factors, 71, 

 145, 148. 



Weisner, 143. 



Whales, 40. 



WUson, 146. 



Woehler, 29. 



Wolf, Tasmanian, a true marsupial, 

 42. 



Wolff, 70. 



Wolves, 140. 



Wombat, 42. 



Wood-frog, 71. 



Woods, heredity of mental qualities, 



232. 

 Worms, blindworm of England, 45 ; 



48, 50, 53, 81 ; nervous mechanism 



of, 205, 206 ; nervous system of, 



256, 257. 



Zebras, 96, 97, 112. 



Zoology, 34, 75, 78; geographical 



distribution, 100. 

 "Zoonomia," 135. 



