No. 4.] 



MANUlilAL PROBLEMS. 



169 



First Course of Bolatinn. 



Second Goiirse of Rotation. 



Plot 22, 

 Plot 20, 

 Plot 18, 

 Plot 24, 



The only points of particular interest concerning the clover 

 are its inability to succeed upon very acid soil until after 

 liming, as shown at the outset ; and its great liability in both 

 the first and second years to injury from drought, which 

 may not, however, be sufficient to materially injure grass, 

 provided it is properly to})-dressed early in the season. 



At the prices used in the financial estimates in this rota- 

 tion there was a net loss in the case of Plot 18 of 118.40 for 

 the entire period of the first course of rotation, and a net 

 gain of $80.70 for the second course of four years. 



Concerning Plot 20, the only other one in regard to which 

 the full data for both courses of the rotation are already 

 calculated, there was a total loss for the first course of $44, 

 and a gain for the next period of four years of $64.40. In 

 view of the fact that Plot 22 showed a net gain of $46.30 for 

 the first period and Plot 24 a loss of only $17.56, the show- 

 ing of those two plots for the first eight years gives promise 

 of being much superior to that made by plots 18 and 20. 



The indications arc to the eftect that possibly the three- 

 year rotation may furnish a quicker and more remunerative 



