C. A. BARBER i2Y 



Were accordingly taken for each of the varieties in the dissection plot and these 

 were examined at 3-5 months from planting. The more rapidly maturing 

 groups were taken first, as explained on p. 112. Thus, the Saretha group was 

 examined 106-112 days after planting, Pansahi 113-120, Nargori 120-126, 

 Mungo 126-132, Sunnabile 133-143, and Thick canes 149-152. These were 

 the main groups it was desired to compare. The wild iSaccharums, of which 

 one species showed poor accommodation to the cultivated land, were examined 

 at 120-156 days, while the Unclassified indigenous canes, the Crosses and 

 Rogues, being less important, were taken at the end of the series. It transpired 

 that the arrangement was not ideal ; the last named varieties should have 

 been dissected earlier, and certain other alterations would have been desirable. 

 This varying age of the plants dissected has introduced complications and must 

 be held in view in the comparisons. In two cases, the early development was 

 so poor that additional clumps were dissected at the end of the period, and a 

 study of the results obtained will give some idea as to the rapidity of change 

 at this stage of growth. Dhor was dissected at 142 and 156 and Khari at 110 

 and 156 days, namely, the beginning and the end of the work. The following 

 table gives the canes and shoots formed per clump in these two varieties at the 

 dates given : — 



Dhor . . 2 clumps with 4 plants 142 days old 30 canes 20 shoots 

 • • 2 „ „ 4 „ 156 ,, „ 53 ,, 25 „ 



KJiari .. 2 climaps with 6 plants 110 days old 3" 5 canes 21 shoots 

 ..2 „ „ 7 „ 156 „ „ 140 „ 7 ,, 



The word " canes " in the list indicates cane-forming shoots, and this 

 is judged by the presence of hardened rind in one or more of the basal joints. 

 In the diagrams prepared from the dissections, such cane-forming shoots are 

 indicated by the bases being in ink, the rest of the diagrams being in j^encil. 

 Green shoots, not cane-forming, are simply classed as shoots and burst buds and 

 deaths are added as usual. A further distinction is introduced in all the shoots, 

 whether cane-forming or not, in that they are separated into two classes, accord- 

 ing as they were over or under 3' in length, and this is indicated in the diagrams 

 by the signs>and-<, as well as the general length of the line for the branch. 

 All the branches are separated, as usual, into as, 6s, cs, etc. It is obvious that, 

 from a consideration of such a diagram and the fornmla describing it, a very 

 fair idea can be obtained as to the stage of development of any plant or clump. 

 An example for each group is given in the figures on Plate XIX, where, however, 

 the pencil marks are omitted, full grown shoots are marked u, and half grown, 



