ANATOMICAL ANALOGY OF ANIMALS 173 



from the hand of man, is composed of similar 

 bones, and at the extremity of each finger, we have 

 the same small bones resembling the hand, which 

 are bound up in the hoof of that animal. 



If the skeleton of quadrupeds, from the ape to 

 the mouse, be lifted up and placed by the side of 

 man there will be observed a surprising uniformity 

 of structure in the whole group. This uniformity 

 is so constant, and the gradations from one species 

 to another are so perfect that to discover the marks 

 of difference requires careful discrimination. There 

 is a corresponding structure on a common plan for 

 all animals. The hand of man, the paw of the dog, 

 the fin of the whale, the wing of the bird, the foot 

 of the horse, and the wing of the bat are not alike 

 in outward appearance, and are used for a different 

 purpose, yet they have an equal number of bones 

 differently lengthened and arranged for the different 

 purposes for which they were intended. And as 

 the bones of man are analogous to the bones of 

 lower animals, so are the muscles, nerves, blood- 

 vessels, viscera, and entire structure of the body. 

 Man walks on two legs, and so do all feathered 

 animals as well as some other species such as the 

 gorilla, orang-outang, kangaroo, etc. 



