Index. 195 



Origin of the canary, 74, 75 



of types, 94 



, the common, of genera, orders, and classes a wild guess, 



87,88 

 of primary types unknown, 92 



of the complicated and brilliant colours of animals, whether 



it is from sexual selection, 140 

 of similarities between organized beings twofold, according 



to Lewes, 104 



of the fantail pigeon, conjectures as to, 115 



*' Osteology of the Hypotamida," Kovalewsky on, quoted, 109 

 Ostriches, the, how do they stand related to Carinate birds and 



to Dinosauria? 149 

 Ova of all mammals, apparently indistinguishable but really 



distinct, 98 

 Ox. See Bos, Cattle, Cow 



1'achyderms, the large, were once cosmopolitan, 163 



Pacific, what would have been the fate of mammals in the small 

 islands of the ? 159, 160 



Palaeontology, general aspect of, not favourable to the origin of 

 marked types by slow gradations, 80 



Pallas first showed the distinctness of East Asiatic hog, 35 



Paraguay, cats in, 31 



Paridigitata, constancy of the relations of the bones in all, 

 Kovalewsky's inferences from this fact combated, 109, et seq. 



Pavo nigripennis, 71 



Pea-fowl, black-shouldered, supposed to have been suddenly pro- 

 duced out of the ordinary kind, 71 



, conjectures of the author as to its real history, 73 



, Mivart's remarks on, 151 



, differs from the ordinary sort as far as known in 



colour only, 151 



Pedigree of the horse, supposed, rests on no evidence, 79, 80 



might have been read backwards, 129 



