113 



but they require a great quantity of dung, and arc no: 

 always marketable. 



We shall now proceed to state rotations of four in 

 clayey soils. 



In thin clays, a four course shift is the best ; as, i. Fal- 

 low ; 2. Bear or Barley ; 3. Clover ; and 4. Oats ; be- 

 cause such soils, the longer they remain in grass, the 

 worse they become. 



On the estate of Monorgan, in the Carse of Gowrie, 

 the following rotation was adopted on a fine friable dry 

 clay, and has been for many years followed with much 

 success : i. Fallow ; 2. Wheat ; 3. Drilled Beans ; and, 

 4. Wheat. 



A farmer, who has taken about 300 acres in that dis- 

 trict, at the rent of about L. 6, 10 s. per Scotch acre, 

 proposes, I am informed, to adopt the following course, 

 and expects to derive from it, at a moderate calculation, 

 the following produce and value : 



Average per acre per annum, L. 15 17 o 



This sum might be divided in the following manner : 



i. Two-fifths for seed and labour, L. 6 6 9^ 



a. Two-fifths for rent, 66 9^ 



3. One fifth for tenants' profit, interest of 



capital, &c. 335 



L.i 5 i? 



