March, 1909.] 



227 



Appendix A. 



Dyes and Tans, 



Statement showing the quantity of cutch exported from Burma during the year 

 1S9A-95 to 1906-07. 





Foreign. 





Coasting. 







Total. 





Year 























Value 



Per 



Quantity. 



Value 



Per 



Quantity. 



Value. 



Per 





Tons. 



Rs. 



Ton. 



Tons. 



Rs. 



Ton. 



Tons. 



Rs. 



Ton. 



1894-95 „. 



5,524 



22,34,516 



404 



3,989 



14,95,102 



374 



9,513 



37,29,618 



392 



1895-90 ... 



7,827 



33,52,484 



428 



3,333 



13,06,637 



392 



11,160 



46,59,121 



417 



1896-97 ... 



5,853 



22,90,365 



391 



1,620 



6,32,916 



390 



7,473 



29,23,281 



391 



1897-9S ... 



4,821 



18,58,752 



385 



614 



2,30,219 



375 



5,435 



20,89,043 



384 



1898-99 ... 



3,075 



12,77,985 



415 



655 



3,06,521 



467 



3,730 



15,84,506 



424 



1899-1900 



6,302 



24,34,101 





1,159 



5,76,171 



497 



7,461 



30,10,272 



403 



1900-01 ... 



4,949 



18,42,063 



372 



1,102 



5,30,730 



481 



6,051 



23,72.793 



392 



1901-02 .. 



3,273 



11,94,898 



365 



770 



3,21,237 



417 



4,043 



15,16,135 



375 



1 902-03 ... 



3,460 



13,18,921 



381 



953 



4,20,208 



440 



4,413 



17,39,129 



394 



1903-04 ... 



5,492 



19,11,943 



348 



1,322 



5,36,3S7 



405 



6,814 



24,48,330 



359 



1904-05 ... 



3,01S 



9,31,596 



308 



779 



3,12,749 



401 



3,797 



12,44,345 



327 



1905-00 ... 



2,723 



8,48,887 



311 





3,59,069 



475 



3,478 



12,07,956 



347 



L906-07 ... 



4,772 



15,53,470 



325 



868 



3,61.905 



417 



5,640 



19,15,375 



339 



Appendix B. 



Note on the analysis of six samples of 

 Burma Cutch by Mr. Puran Singh, 

 Acting Imperial Forest Chemist, Dehra 

 Dun, 9th September, 1907. 



I beg to submit herewith the chemical 

 analysis of six samples of Burma Cutch 

 sent by you to my office. 



It will be seen from the table given 

 below that some of them are very 

 moist ; 11 — 13 per cent. I think should 

 be the limit of total moisture in a good 

 sample of cutch. No. 2 and No. 3 

 exceed this limit by 5 and 8 per cent., 

 while No. 4 and No. 6 by as much as 

 21—25 per cent. The sample of cutch I 

 extracted from Acacia wood in my 

 laboratory shows an average of ^'OSa 

 per cent, of moisture. 



Argued from the percentage of ash 

 residue the sample No. 2 is very impure. 

 The normal limit of ash is given at 

 5 per cent., and the percentage of ash 

 in sample No. 2 exceeds this limit by 

 10 and the samples No. 3 and No. 4 

 by 2 per cent. 



The catechin value of these samples 

 is generally good excepting that of 

 No. 2, which comes only to 5"2 per cent. 



The method adopted for the determin- 

 ation of catechin is one of my own, 

 and the relative merits of this process 

 and that already known by acetic ether 

 extraction, I am to discuss in a separate 

 pamphlet on the subject. 



But I may note here in passing that 

 the catechin value found by me is 

 higher than that found generally by 

 the acetic ether process, as in the lat- 

 ter the complete isolation and extrac- 

 tion of catechin does not take place 

 as belived, for pure catechin goes with 

 ether rather reluctantly, while in the 

 menstruum used by me it dissolves 

 with extreme ease. 



The tannin value of these samples is 

 also fairly good, excepting that of the 

 second sample, which is only 21*2 per 

 cent. The percentage of insoluble 

 organic matter is within its limit in 

 all these samples excepting that of 

 the second, which runs up to 25 per 

 cent. 



On the whole I find that excepting 

 samples No. 2 and No. 6 all the samples 

 are good. No. 2 is very deficient in 

 tanin value, while No. 6 is very moist 

 and its tannin value is, comparatively, 

 very low. 



