I. TO HAMIVTEAD. 17 



We may also regard, as relations of utility, 

 the morning and evening twilight, as well 

 as the light of the moon. 



And here we have to consider a new series 

 of relations, which still more evidently dis- 



a 



play the benevolent designs of nature to wards 

 man. These we have termed the relations 

 of pleasure or satisfaction, since they are 

 neither absolute by necessity, nor of real 

 utility to the due exercise of the organs of 

 sight, though they procure for us the most 

 exquisite enjoyment. 



Thus, for example, the magnificent spec- 

 tacle of Aurora, the brilliant colors which 

 embellished the heavens at the rising and 

 setting of the sun, and which the pen can- 

 not describe, or the pencil imitate, are not es- 

 sential to the ends of our existence ; yet 

 their contemplation imparts to the mind the 

 most pure and delightful sensations. A- 

 mong these relations we may likewise class 

 those which result from the variety conspi- 

 cuous in the vegetable kingdom. -Even the 



c 3 spot 



