On Gypsum. 175 



incapable of producing or supporting vegetable sup- 

 plies, or animal existence. 



It is not surprising, that chymical pursuits should 

 fascinate enquiring minds. They open the great, and 

 often hidden springs of operation, by which the pur- 

 poses of the creator are effected. So far are they from 

 encouraging the wild and flagitious speculations of 

 sceptics, that they teach us, with humble adoration, and 

 ardent gratitude, to 



^^ Look through Nature up to Nature^ s God.''^ 



