STUDY X. 333 



Sriclcs of it ; the two ventricles of the heart ; and 

 the divifions of the other vijcera announce this 

 double union, and feem to indicate, that the 'very 

 principle of ii/e, is the confonance of two fimilar har- 

 monies *. 



There farther refults from this duplicity of or- 

 gans, a much more extenfive range of utility than 

 if they had been fingle. Man, by the affiftance of 



* Each organ is itfelf in oppofition with the element for 

 which it is deftined ; fo that from their mutual oppofition arifes 

 a harmony which conftitutes the pleafure enjoyed by that organ. 

 This is very remarkable, and confirms the principles which we 

 have laid down. Thus, the organ of vifion, adapted princi- 

 pally to the Sun, is a body fingularly oppofite to him, in that it 

 is almoft entirely aqueous. The Sun emits luminous rays j the 

 eye, oil the contraiy, is furrounded by a d jfky eye-brow which 

 overfhadows it. The eye is, befides, veiled with a lid which 

 can be raifed and dropped at pleafure ; and it farther oppofts 

 to £he whitenefs of the light, a tunic entirely black, called the 

 wwa^ which clothes the exti cmity of the optic nerve. 



The other parts of the body prefent, in like manner, oppofitions 

 to the aétion of the elements to which they are adapted. Accord- 

 ingly, the feet of animals which fcrambleamong rocks are provided 

 with pincers, as thofe of tygers and lions. Animals which inha- 

 bit cold countries, are clothed with warm furs, and fo on. But, 

 with all this, we mull not always reckon on finding thefe con- 

 Éraries of the fame fpecies in every animal. Nature pofiefTes au 

 infinite variety of means, for producing the fame etfe(îls, con- 

 fofflpably to the neceflities of every individual. , 



two 



