1 78 Index. 



Animal forms, their distinctions less pronounced in youth, 96, 97 



nations, 46, 85 



Animals, geographical distribution of, 154, et sea. 



, domestic, 28, et seq. 



, female, whether they prefer brightly coloured males, 138 



, their instinctive actions not safe to interpret anthropo- 



pathically, 142 



" Animals and Plants," Darwin's work quoted, 17-20, et seq. 48 

 Apteryx, its useless wings, 95 

 Asinus Onager and Hemippus, 7 



, Taniopus, 35 



Aurochs, 40 



Australia, its fauna, 163, et seq. 



B 



Bagadotten carrier-pigeon, its type, 68 



Bakewell, his famous longhorns, 46 n. 



Barbs (pigeons), 65 



Batrachia, Darwin's assertion as to, 158 



Battle, law of, among animals, 139 



Bees, hive, 74 



Behring Straits, wolves and foxes on both sides of, 8 



Birds, female, 138 



Bison, Lithuanian and American, 40 



Black-red game-fowls, 69 



Black- winged peacock, 71, et seq. 



Blyth, first a polygenist, afterwards an evolutionist, 4 



on differences between European and Indian cow, 16, 40 



on undescribed wild asses, 35 



on races of wild sheep, 49 



Boar, wild, of Europe, compared with domestic pigs, 36, 37 

 Bos-primigenius, 41 



longifrons, 41 



troclioceroS) 41 



akin to the niata cow, 48 

 Brazil, 39 



