28 SPECIES NOT 



with short feet have long beaks, and vice versa. 

 And these are the peculiarities which man selects 

 or avoids to cause variation in his domestic 

 species; for, according to Mr. Darwin's theory 

 of correlation, if we select any peculiarity in 

 an animal, we unconsciously modify other parts 

 of structure! 



Now, as these preliminary parts of Mr. Darwin's 

 work are all links in the hypothetical chain 

 which he has worked, it may be necessary to 

 notice some of these so-called correlations of 

 growth. 



This reciprocal relation of parts in the growth 

 of an animal is, after all, nothing more than 

 the law of symmetry, which is a pervading 

 feature throughout nature. That a horse or a 

 bullock with long legs should also have a long 

 head, is in perfect keeping with such law. A 

 long-legged horse with a short head, or a short 

 one with a long one would not be symmetrical, 

 therefore abnormal. So a cat is born deaf; and 

 with this defect in one organ of sense, is a 

 peculiar colour in {mother. Mr. Darwin says 

 this is invariable in the cat. But he does not 

 mean to assert (because he is a man of emi- 

 nence, and would not, I am sure, descend to 

 sophistry so unworthy,) that because the iris of 

 the cat is blue, therefore the cat is deaf! No, 

 he merely asserts a coincidence; but I may 

 take the liberty of remarking that this should 

 not have been mentioned as an instance of 

 correlation of growth. If it means anything, it 



