CHEMICAL TECHXOLOGY. 15 



fluence of mineral and organic manures on the special products 

 of plants, and of various conditions on the products of ani- 

 mals ; and the examination of the ashes of organized bodies, 

 with a view of supplying such as may be required for obtain- 

 ing special products. These subjects are most conveniently 

 grouped in this manner at the present time ; but as the art 

 becomes more fully developed, the very different nature of 

 plants and animals, and the different influences exerted upon 

 each domain of organic life, will cause their separation. 



The following is a tabular view of the arts, classified in ac- 

 cordance with the principles above laid down. 



James C. Booth. 



Philadelphia, 17th March, 1851. 



