100 



MEAN VALUE OF SEED SELECTIONS. 

 [Total number of single canes analyzed, 104.] 



Selection No. 206. 

 [Average samples.] 



MEAN VALUE OF SEED SELECTIONS. 

 [Total number of single canes analyzed, 68.] 



The mean of all the analyses of these ten lots of Link's Hybrid 

 canes, grown from selected seed, for 1891 is : Sucrose, 14.60 ; glucose, 

 0.63 5 purity, 73.10. 



The mean of all Link's Hybrid lots in 1891 is : Twenty-nine days, 

 276 analyses, 14.05 sucrose, 0.85 glucose, 70.25 purity, which shows a 

 difference in favor of canes grown from selected seeds of 0.55 sucrose, 

 0.22 glucose, 2.85 purity. This difference is small, but such differences 

 are cumulative and are similar to those given for the sugar beet, as 

 shown in Prof. Maercker's results, quoted before. 



LINK'S HYBRID AND AMBER CROSSES. 



In 1890, 455 lots were planted in crosses of these varieties, all of 

 them differing in type, in the hope of selecting from them one or more 

 superior new varieties. 



In 1891, 13 of these gave as a mean of 57 analyses, covering an 

 average period of 20 days: Sucrose, 15.21 j glucose, 0,48 j purity, 73.97. 



