Chap. 3.] [ 89 ] 



CHAP. III. 



STRUCTURE OF ANIMALS. 



Sixe of Man. His ereft Pofture. Varieties In ike Strufiure of Aiii- 

 ma/s. Parts of the Animal Body* 



IN taking a general view of the formation of MAN, 

 a circumilance of importance is his fize, confidered 

 in relation to the force of gravitation. If the fize of 

 man was much greater than it is, fuppofmg his ftrength 

 to be only in proportion, his motions would be much 

 flower, and more laborious ; nor would his increafe 

 of fize be entirely compenfated by a diminution in the 

 force of gravitation, for this would expofe him to in- 

 conveniences, on account of the various relations in 

 which he ftands to other objects. On the contrary, 

 was man much fmaller, though he would gain in 

 celerity what he would lofe in force, yet his weaknefs 

 would incapacitate him for acting with advantage on 

 confiderable mafTes of matter. On the whole, if 

 mould' feem, that neither an increafe of fize with an 

 increafe of gravitation , nor a diminution of fize with 

 a diminution of gravitation ; nor an increafe of eicher 

 with a diminution of the other, would in general fo well 

 fuit, the conveniences of man, and his relation to 

 other beings, as the Hate in which he at prefent 

 fubfifts. 



The mod ftriking difference of ftructure between 

 man and the other animals is his ere 61 figure, excel- 

 lently adapted to the more extenfive views which he 



' was 



