1 82 Index. 



Darwin, his "Origin of Species," its effect on the scientific 

 world, 3 



has destroyed finally the conventional notion of species, yet 



inconsistently in places strives to build it up again, 5 



, his error as to importance of parts, 13 



, his remarks on human and natural selection, 17 



enunciates truths tending to the overthrow of his hypo- 

 thesis, 20 



on the breeds of dog, vagueness and irrelevance of his 



statements, 30 



, his important admission as to strength of inheritance, 92 n 



on the horse, no grounds for what he says in opposition to 



Hamilton Smith, 32 

 speaks of breeds when he ought to speak of individuals, 



34 



on certainty of inheritance in the horse, 34 



speaks of niata ox as an eye-witness, 48 



on sheep, 4, et seq. 



on rabbit, 53 



on feral rabbits, 54, 55 



on Porto Santo rabbit, 55, ct seq. 



reasons gravely on details of legendary tale, 56 



on pigeon, 58 



has practical experience in pigeons, 58 



, his six grounds for believing that all tame pigeons sprang- 



from the rock dove examined, 59 

 seems to forget all he ever said on causes of extinction, 61 



produced, by crossing pigeons of various breeds, birds 



coloured like the rock dove, but knew nothing of the 

 pedigree of the birds employed, 66 



on the fowl, 69, 70 



on the pea-fowl, supposes that the black-winged pea-fowl 



was suddenly produced in England, quoted, 71, et seq. 



, his promised work on variation under nature has never ap- 

 peared, 75 



had hypothesis of evolution suggested to him by seeing 



large fossil Edentata in South America ; rashness of this, 94, 95 



