Hitman Physiology. 



man, and with which he is best acquainted; animals with the 

 largest brains and most improvable by education; animals 

 which seem to have been expressly created for man, and which 

 are very useful, if not absolutely necessary, to his life on the 

 earth. Their wool and skins have been his clothing, their milk 

 and flesh his food; they have been his friends, companions, 

 and faithful servants, watching, working, hunting, fighting ft r 

 him, and transporting him from place to place. 



The body of man very nearly resembles the bodies of the 

 higher orders of animals. All those with bony skeletons are 

 made in the same fashion, as all nature seems formed upon the 

 same plan and of the same materials; and it is probable that 

 life in the most distant systems of the universe carries out this 

 law of universal analogy. Everywhere there are the same 

 elements of matter, the same forces in action, the same life 

 and similar forms of its development and manifestation. If 

 there are men, as I have no doubt there are, on Jupiter and 

 Saturn, there are also birds, beasts, and creeping things, resem- 

 bling him as our animals resemble us. 



But remarkable as may be our resemblance in physical form- 

 ation and corresponding mental character to many animals of 

 our own class, how widely different from multitudes of others! 

 What likeness, what relationship is there between man and the 

 whole class of insects, with their curious forms, wonderful 

 transformations, and strange modes of life? If man, in the 

 progress of his foetal development ever resembles a grub, he 

 certainly never comes to any striking similarity to a bee or a 

 butterfly. Can we conceive of progressive development, under 

 the same conditions of matter and force, coming to such 

 diverse results as, say, a whale and a dragon-fly? We must 

 find something more than sunshine and electricity, or natural 

 selection and sexual selection, to account for such diversities. 



No one can look at a horse without being struck with his 

 adaptation to the wants of man. His back was formed for a 



