“ could obtain à a on, I should be greatly obliged Tt is dis- 
“ coloured from the creek water in which it was washed, the only kind 
> “ of water that was there obtainable. The fresh ini. seems to be 
* rich beyond any I have before found in caoutchouc. The only 
"n E I He need} is that it dries slowly, remaining sticky for some 
E the kindness of Mr. S. W. Silver, F.L.S., to whose good 
ore in connection with the investigation of numerous samples of 
is establishment is greatly indebted, we have been favoured 
: i 
valuable properties, that it would be well to ascertain whether a 
; tity could be laced in our hands for further experimenting. 
of commercia E 
.* We note the remark as to its being * discoloured = being washed 
n peaty water’; this treatment has in no way interfered with our 
being able to report upon it. One side of it is he with a a brownish 
t of a resinous character, and is evidently prod ed either 
n of the resin itself, contained i in this eene or from 
‘substance, as it is, ,cannot be worked it = i oe 
ber sppliances ; this is due to its Arist i 
difficulty of removing water frorn it c any ordin 
proce: of drying, which is essential with india a-ru 
On removal of the resin, the caoutchouc is r reovened i in a soft, 
i: sticky condition, quite unfit for manipulating as itdir 
‘When a substance of such promise is sen xamination ^ it is 
. only im portant that a larger supply should be availa able for the 
rpose i nt ex] 
far, there appear eme grounds for pelier that if the plist 
from which the rubber was extracted exists in any quantity in the 
r of Demerara, the colteotion of the rubber osa be a xm 
g commercial undertaking. 
with this subject, it may be useful to draw attentio 
ncc er species of Forsteroni tei T. beatus called în in 
o yield | 
been unable to obtain specimen wer or fruit.” 
| Report for the year 1884, pp. 46-47, it is furiher stated that 
digenous plant, known as as _the * milk-withe, ' found in the mo 
eme of what by bale to be the same rubber was 
sacred iere ago A the Manm of tbe Pharmaceutical 
