§ V. THE SCHOOL OF AGRICULTURE. 



Next to the garden of economical plants is the 

 School of Agriculture, which was formed by 

 M. Thouin in 1806, for the purpose of exemplify- 

 ing the processes of cultivation, and verifying the 

 principles of vegetable physiology. Though less 

 extensive than the object requires, it is not the 

 least interesting part of the establishment. 



The enclosure is 2 1 o feet in one direction, and 

 180 in the other, and is divided into forty-eight 

 beds, from 3 to 6 feet wide, according to their 

 destination to one or other of the following ob- 

 jects: the birth of vegetables, their preservation, 

 their multiplication by other modes than from 

 seed, and the exhibition of the uses in agriculture 

 and gardening of assemblages of living plants. 



The examples of the third division are placed 

 immediately after the first, that the slips and 

 layers, which are liable to injury from the sun, 

 may be shaded by the catalpas of the avenue and 

 other trees. 



As there is but one mode of giving birth to 



