286 



VERBENACEJ3. 



[Tectona. 



It will be noticed that as far as the data go, which are furnished by the sections 

 received, South Kanara, North Kanara and Bamunpokri exhibit an increase of diameter 

 similar to that of Nilambur ; while in the samples from Burma the annual rings are 

 much narrower and the specimen from Port Blair shewed an extremely rapid rate of 

 growth. 



Girth and height at different ages. The following measurements illustrate the 

 rate of growth of Teak in plantations in different provinces as nearly as possible from 

 5 to 5 years. The Nilambur plantation again furnishes the largest amount of 

 information : 



3 7 years 

 8-12 



1317 



1822 



2327 



29 



30 



31 



32 



33 



Nilambur plantation. Alluvial soil. 



12 inches 



17 



23 



25 



27 



34 



35 

 32 

 34 

 37 



29 feet. 



63 



68 



71 



77 



87 



85 



75 



92 



95 



Nilambur plantation. Gneiss and laterite. 



are 



These figures are taken from that portion of Colonel Beddome's report (pa 

 11 44) which contains his notes on each year's plantation, and the data reco 

 stated to be average figures. 



In another part of his report (paragraph 81), however, he gives data which would 

 seem to shew that the average size of the trees in the older plantations (all on alluvial 

 soil) is considerably greater. He there states the dimensions of the largest, smallest 

 and medium sized trees in four plantations, the results being as follows: 



The first three lines shew the average of 6 trees in each case, and the last line 

 the average of 8 trees each. It is distinctly stated that the length is that of the bole, 

 and not of the entire tree. 



The plantations made on gneiss and laterite shew a much slower rate of growth 

 than those on alluvial soil ; the difference being considerable in height, and much less 

 hi girth. 



