CREATION BY LAW. 263 



ism are bound together as one whole by a pervad- 

 ing system of correlations as intricate as they are 

 obscure. When the organism is in health, and 

 all its parts are working in harmony, the wonder 

 of these correlations is not perceived. But they 

 are brought out in a marked degree by the 

 phenomena of disease, and also by the pheno- 

 mena of monstrosity or malformation. The " sym- 

 pathy" which the most distant and apparently 

 unconnected parts of an organism show with each 

 other when one of them is affected by disease is 

 the index of correlations whose nature is utterly 

 beyond the reach of our anatomy. It is the 

 same with malformations. Mr Darwin mentions 

 one case of curious and unintelligible correlation 

 — viz., that a blue iris is associated in Cats 

 with deafness; and, again, that the tortoise-shell 

 colour of the fur is associated with the female sex 

 in the same animal. In like manner the bright 

 colours, and the more conspicuous ornaments 

 of plumage in Birds, are correlated with the 

 male sex. So likewise are vocal organs with the 

 wonderful gift of song. In many insects the differ- 

 ences of form which are correlated with the differ- 



