74 



ence for that eud is placed in Table II, following, which is a synopsis 

 of the laboratory results with each variety for the whole season. 



TABLE II. Number of single-stalk analyses, showing purity at or above 77 per cent and 

 sucrose at or above 16 per cent per 100 canes examined during the season of 1S91. 



FIRST SERIES, PLANTED MARCH 28, 1891. 



SECOND SERIES, PLANTED JUNE 8, 1891. 



The figures of Table II make evident the chemical superiority of the 

 first series. In using these data for singling out the varieties which 

 have given the best results this season, due weight was given in the 

 case of Early Orange, Collier's, and Colin an Cane to the average sam- 

 ple analyses obtained from canes grown in the field Plats A, B, and D, 

 of which a detailed account is given later (in Table III), and which influ- 

 enced the choice of varieties for another year in no little degree. 



AVERAGE SAMPLE RESULTS. 



The four average sample plats have already been described, and repre- 

 sented the varieties Early Orange, Collier's, Link's Hybrid, ami Colman 

 Cane, respectively ; that Plat C failed to germinate, and that Plat A 

 was planted with and treated like the forage sorghum, being damaged 

 in consequence, will be recalled. Plats B and I) stand on the same 

 footing with the single-head plats of the first series as to treatment, etc. 



In the subjoined Table III are given in full all the analyses made upon 



