G. W. Robinson and W. E. Lloyd 149 

 250 yards 



!• 



12' 



11' 



10" 



13' 



14- 



15- 



10 



•a 



d 



o 



Fif,'. 2. Field B. 



The mean values and probable errors calculated from these results 

 are as follows : 



The results obtained may now be stated : 

 Field A. Drift Soil. 



