INSTANCES OF ANALOGY AND AFFINITY. 183 



semblance is consequently superficial. By affinity, on 

 the other hand, we imply such a resemblance in those 

 characters just mentioned, and such a strong similarity 

 in the detail of the structure of two animals, that 

 they are only kept distinct by a few peculiarities of 

 secondary importance. These two sorts of relations 

 have been apparent since men first began to reason 

 on the things they saw; but although admirably 

 explained by one of our modern zoologists, they have 

 been so confounded anfl obscured by the writings 

 of most others, that some, bewildered by the loose- 

 ness of the existing definitions, have gone so far as 

 to deny their very existence. The following illus- 

 tration, however, will render the distinctions here 

 given, intelligible to the most unscientific reader. 

 Let us compare, for this purpose, the full-bottomed 

 monkey, or the Colobus polycomas of Geoffroy, with 

 the African lion {Leo Africanus Sw.), and we are 

 struck, at the first glance, with their mutual resem- 

 blance : both have long manes, hanging over their 

 . shoulders ; both have a slender tail ending in a 

 tuft of hair; and both have the fur, in all other 

 parts, short and compact. Had we no know- 

 ledge that such a monkey really existed, and 

 merely saw its figure, we might be tempted to think 

 it was a bad representation of the lion. Strong, 

 however, as this resemblance, at first sight, un- 

 doubtedly is, we soon discover it is merely super- 

 ficial. It is essentially, in fact, a monkey in the 

 garb of a lion ; without possessing any thing of the 

 characteristic structure, the habits, or the economy 

 of that quadruped which it represents : the relation 

 ship, in short, is one of analogy only ; for, were 

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