INDEX 



317 



Tracheal gills of insect larvae, 23 

 Trimen, Roland, on Papilio cenea, 237, 



239 ; on habits of Hypolimnas misip- 



pus, 336 

 Trochilidae, 108, 132 

 Trogonidse, 136 

 Tryphcena pronuba, 246 

 Turbot, 188, 192 

 Turkey, 116 

 Turnix, T. taigoor, 118 ; T. sylvatica, 



120 

 Tyler, Alfred, on coloration of animals 



and plants, 27 



Umbrella -bird, 145 



Ungulata, 288 



Unionidas, 288 



Unisexual characters, 43 



Ure, George, on the pouter pigeon, 125 



Urodela, 168 



Yallentin, Eupert, vi. ; on elephant 



seal, 68 

 Vanellus cristatus, 154 

 Variations, 12, 15 

 Velvet Scoter, 159 

 Vertebrata, 5, 6 

 Vidua paradisea, 151 

 Voice, lower pitch of, in man, 54 



Wallace, A. and R., on the origin of 

 sexual characters, 25 , 26, 32 ; on 

 supposed existence of horned horses, 

 104 ; on display by male birds of 

 Paradise, 139 



Wapiti, or Canadian deer, 88 



Wart-hog, 106 



Water-deer of China, 76 



Waterton, on caruncle of Chasmorhyn- 

 chus, 142 



Weale, Mansel, on varieties of Papilio 

 cenea, 240 



Weapons, 43 



Weavers, 150 



Weismann, on adaptation, 4 ; on habits 

 of Lyceenae, 244 



Whelk, 287 



Widow-bird, 150 



Wing of birds, 18 



Women, 46 



Wrangel, Admiral von, on migration of 

 reindeer, 92 



Xiphophorus Hellerii, 183 

 Xylotrupes Gideon, 254 



Yarke, 48 



Yarrell, on trachea of ducks, 158 



Zeller, on courtship of newts, 173 



THE END 



Printed by R. & R. Clark, Limited, Edinburgh. 



