io4 
TlMEHRI. 
these barks properly examined ; and it would be easy, 
in the case of those which prove to be of any consider- 
able value, to make arrangements for their collection in 
large quantities with the best results both philanthropic 
and commercial ; nor, as may once more be pointed out, 
would a central depot, either under government man- 
agement, or still better, as a commercial undertaking, 
for the purchase in large or small quantities of such 
natural products as these barks from the Indians and 
river-men be a thing difficult to organize. 
A case parallel to that of these medicinal barks may 
be shown by the following quotation, from an Official 
Report by the Government Analytical Chemist, on cer- 
tain tannin barks submitted to him for analysis : — 
" The following table gives the percentage of leather 
yielding by each of the samples and the amount of tan- 
nin calculated therefrom : — 
Number and Names. 
Per Cent, 
of Leather 
Per Cent, 
of Tannin. 
Re-action with iron 
per Chloride. 
1. Mora 
20-7 
8-28 
Bluish-black 
2. Carrapa 
26-2 
10-48 
Greenish-black 
3. BuckWallaba 
11-0 
4-40 
„ „ 
4. Eucaballi 
23-3 
9-32 
Bluish-black 
5. Kakaralli 
19-3 
7-72 
Greenish-black 
6. Eturey Wallaba 
69 
2-76 
» » 
7. Mapurakuni or Maypaie. 
15-5 
6'20 
> » 
8. Suradani 
5-5 
2-20 
J !> 
9. Curacura 
4-3 
1-72 
> » 
10. Darkuma 
28-3 
11-32 
, „ 
11. Baboreybador (rope) ... 
5-1 
2-04 
> » 
12. Determa 
5-6 
2.24 
,, 
115. Mora bouquet 
23-6 
9-44 
Bluish-black 
11. Crab wood 
2-8 
1-12 
Greenish- black 
15. Black wood ... 
0-4 
0-1 (5 
» >> 
Judged by the amount they contain, the samples num- 
bered i, 2, 4, 5, io and 13 are chiefly worthy of no- 
