92 
Messrs. WALLACE BROTHERS to Royan GARDENS, Kew.. 
8, Austin Friars, London, E.C., 
SIR, Febr 189 
E are sending you by parcel post a sample of Mangrove bark: 
from British North Borneo, which we understand is known there. as 
Kulit Tengah Mangrove. wel this bark a substance is. produe 
which is used largely in. dyeing, and we shall feel much obliged if you 
will inform us whether the particular description of Mangrove t tree fro 
which this bark is produced is found in British gaa sphepa are, we 
know, large quantities of Mangrove trees in Burma, but we are not sure 
if they consist of the particular description geom ee the sample 
we are sending 
We understand that the common Mangrove, generically known in 
Borneo as omen also produces a dye, but of a darker colour than the 
engan. 
erhaps you-can oblige us viua the botanical names of the Tengah: 
and of the common Mangrov 
We are, &c. 
Signed) WALLACE BROTHERS. 
W. T. Thiselton-Dyer, Esq., C.M.G., F.R.S., 
Director, Royal Gar dens, Kew. 
‘Royar GARDENS, Kew, to Messrs. WALLACE BROTHERS, 
Royal Gardens, Kew, 
Sirs, February 12, 1897. 
I am in receipt of your euer of giu s date. 
Tengah bark is an article known to only from the Straits Settle- 
ments, Its botanical name is obra obudotilna. It belongs to the 
mangrove family, and ne doubt occurs both in Borneo and in all the 
tidal rivers of British India. It has been studied in the Leeds Dyeing 
School, and was regarded as ** of value to dyers." 
2. I should he disposed to regard the article known as ** eiua Cutch’” 
as gom derived from "A same plant as the ** Tengah extract,” 
e two species ove which are widely mb through- 
de ‘the eastern tropies are Pr A Dea mucronata and Rhizophora 
conjugata. 
I am, &c. 
(Signed) W. T. TuiskrTON-DvER. 
Messrs. Wallace Brothers, 
, Austin Friars, London, E.C. 
DXLV.—WEST INDIA SUGAR TRADE. 
e following article is reproduced from the Times of Novem 
ber 30th last. It gives an extremely clear account of the state at that 
date of the problem of sugar cultivation in British Colonies and the 
cause of its decay. And it is the more valuable as it does this from an 
impartial and independent point of view :— 
“ The position of the West Indian sugar trade, which has led to the 
appointment of an Poe Commission to proceed to the West Indies 
