C. A. BARBER 



153 



that this will be counterbalanced by the fact, illustrated below, (p. 155) that 

 seedlings elsewhere have oriven better juice than on the farm itself. 



In comparing the values of the juice of different seedlings, and in studying 

 the correlations mentioned in the next section, at first the Brix, sucrose, glucose 

 and co-efficient of purity were copied out and averaged. It was soon seen., 

 however, that the excessive laboui' involved would materially restrict the 

 work, and also that, usually, it would be sufficient to consider only the sucrose 

 and glucose. Finally, even this was simplified and only the sucrose was 

 averaged, care being taken to see that the glucose warning of immature canes 

 was not neglected. 



Com'parison of sii.crose hi the j nice in parents and seedlings, 191 "2-14. 



In the accompanying table, details are given of the amount of sucrose 

 in the juice of the seedlings of 1912-14 and of one lot of Cheni in 1911-13. It 

 will be seen that there are considerable variations in the sucrose content of 



