Index. 189 



Horse, great number of breeds and sub-breeds, 32 



, wild horses supposed feral, may just as soon be truly wild 



32 



, Hamilton Smith maintains five stocks of, 32 



supposed by Darwin to descend from one dun-striped 



stock, 33 



, permanence of colour in, 34 



, Darwin on certainty of inheritance in, 34 



-, callosities on all four legs of, 88, 89 

 , pedigree of, according to evolutionists, might be read the 



opposite way, 129 



, different breeds of, probable consequences of their inter- 

 mixture in a wild state, 77 7& 



, permanence of colour according to Hofacker, 85 



Hump of Indian cow not known to be producible, 16 



Hunter, John, on dog, wolf, and jackal, IO 



Huxley, on species and varieties, 1 1 



Hybrid wolf dogs, said to be sterile in close confinement, 29 



Hybrids, fertile, power of producing, often does not run in close 



conformity with morphological affinity, 8 

 Hygienic nature, characters of a, to a certain extent producible, 



44-50, 91 



Hyopotamida, Kovalewsky on the osteology of the, quoted, 109 

 Hyper-Darwinians, German, 119 

 Hypotheses may be used as guides for investigation, or to 



group instances, but not as bases, 25 



doubtful as to variation, Darwinism built on, 169 



Hypothesis, Lyell's, 12 



of multiple origin of domestic pigeon, 60 



of limited variability, 64 



of no variation, 64 



for Darwinian, hypothesis of evolution, of natural selection, 



of sexual selection, see Darwinism, Darwinians, Evolution, 



Selection 



