By John Lindley, Ph. D. 449 



and the rows themselves eighteen inches apart. The result was as 

 follows : 



Red Nosed Kid 

 Pink Eyed Sco 



iilc K> 

 Whole Tubers 



18.518 18 19 88 



,2()< 1 : 10.1 SO 22 15 



From this experiment it appears not only that the rate of in- 

 crease, that is to say the proportion borne by the crop to the 

 weight planted, is on an average as much in favour of single eyes 

 and against tubers as 3.50 to 1.25, but, also, that the produce 

 per acre is on an average so very nearly equal in either case, that 

 it may be doubted whether there is really any advantage in plant- 

 ing tubers ; for the total weight estimated to have been obtained 

 in the five foregoing experiments is, 



Tons. cwt. lbs. 



Whole Tubers . 113 2 72 



Single Eyes . . Ill 3 54 



giving a difference in five acres of about two tons, which is hardly 

 more than the difference between the weight of the tubers and sets 

 originally planted. 



At the time . this experiment was prepared, it was thought 

 advisable also to ascertain what difference in their rate of increase 

 there really is between tubers and eyes, when each set or tuber 



