Index. 193 



Marsupials once dominant over the whole world, 165 

 Mauchamp Merino, its origin, 50 



appears wherever Merinos are found, 5 1 



Melanism, no evidence for the existence of any such disorder, 



Si 



Merino, a complex of various fine-wooled breeds, 5 1 

 Mill, on differences of kind, quoted, 100 

 Miocene corals, affinities of, on East and West coast of America, 



156 



Mivart, his "Genesis of Species," 148 

 , an evolutionist, though not a Darwinian, but much of what 



he says really tells against evolutionism in any form, 148 



on independent similarities of structure, 148 



on formation of species by gradual transition, 150, 151 



, his notion of sudden modifications grounded on insufficient 



evidence, 151 

 Mixed races, inadequate notions of the strictness of inheritance 



formed from the observation of, 118 

 Mocking thrushes of the Galapagos islands, 83 

 Modern breeds so called, 84 

 Modifications in organisms not to be presumed without positive 



evidence, 17, 84 



Moluccas, varieties of duck in, 28 

 Morphological affinity, power to produce fertile hybrids often 



does not run in close conformity with, 8 

 Murray, Dr. Andrew, geographical distribution of mammals, 



H7 

 Mutability of race characters, the breeder's art not founded on, 



but the contrary, 45 

 of organism Darwin has really rendered more unlikely than 



before, 151 



N 



Nathusius on differences between wild and tame pig, 36 



on selections among pigs, 37, 38 



Natural selection. See Selection 



O * 



