SUCCESSION OF CROPS. 199 



Second Series. Turnips. 



Oats or barley, with trefoil. 



Trefoil. * 



Wheat. 

 Third Series. Potatoes. 



Wheat. 



Roots, such as turnips or beets. 



Wheat. 



Buckwheat. 



Beans. 



Oats and trefoil. 



Trefoil. 



Wheat. 

 In this rotation of crops we find that after the soil has 

 been manured, the crops that are most exhausting are re- 

 placed by those that are less so ; and those that foul the 

 soil, by those that cleanse it by requiring frequent weed- 

 ings. 



It is by similar means that nearly the whole sea coast of 

 Belgium, consisting of sterile sand, has been rendered as 

 fertile as the best soil ; and the richest harvests have followed 

 from a judicious system of cropping. 



Upon the sands in the neighbourhood of Bruges, Ostend, 

 Nieuport, Arvens, &/C., the cultivation of the grains is made 

 to alternate advantageously with that of beans, cabbage, 

 potatoes, and carrots. The system of cropping practised in 

 Norfolk, and so much praised by the English, consists in 

 commencing the series by the cultivation of roots in a well 

 manured soil ; these are followed by oats or barley with 

 trefoil, and afterwards by wheat. 



In the bed of dry sand which forms the soil of Cam- 

 pine, the industrious inhabitants have with equal success 

 vanquished all obstacles, and fertilized the soil. It is sur- 

 prising to find in these plains of sand, excellent crops, 

 which, by their judicious arrangement, are constantly ame- 

 liorating the soil. The series which is there followed is 

 this. 



Potatoes. 



Oats and trefoil. 



Trefoil. 



Rye. 



Turnips 

 During a tour which I made with Napoleon in Belgium, 

 I heard him express to one of the council of a department, 



