134 COLLECTING EXPEDITION TO. BATANG PADANG. 
while the “ boy ” way looking for a piece of jungle root to carry 
it by, another smaller one glided out of the same hole, passed 
me and took to the river before I had time to stop it. 
The first one being a fine large specimen and quite unin- 
jured, I took it to Tapa and put it into spirits. These black 
cobras are fairly common in Batang Padang, but are very 
scarce in other parts of Perak, so scarce that I had never seen 
any, till went) there: 
Ihave called it a cobra, but it is not quite certain that it is 
referable to the genus Vaga. Possibly it may be a black varie- 
ty of the Hamadryad, but if so it must either not attain a large 
size, or it must quite change its livery as it grows older; for I 
was informed that it is unknown of a larger size than between 
Sand: © feet. 
The next day, the 20th, the Sakais brought on the baggage 
from Kuala Woh, and I had the plants unpacked and put out 
into the sun todry as soon as possible. They seemed in good 
condition, and there was no sign of their having heated, as 
half-dried botanical specimens have a very unpleasant way of 
doing, when packed up for long in this climate. I then went 
to work on the live plants, which I brought down with me, and 
by the next day they, together with a quantity more that Mr. 
C. WRAY had collected, were all planted and packed up and 
sent down the river in a boat to Telok Anson. 
Mr. C. WRAy and I went on the 22nd to see the new mine 
at Chendariang. We left at between 7 and 8 A. M., and reach- 
ed Naga Bharu at 11 A. M., and from there went to the Sri 
Muka mines. There are two very distinct varieties of tin-sand 
obtained from these mines. The one being black, fine-grain- 
ed and bright-looking; while the other is reddish, brown, or 
white and very coarse-grained, varying from pieces the size of 
the tip of the little finger to masses 100 or so pounds in weight. 
I think it may safely be predicted that when /ampan work- 
ings are carried on, on the hills near Srt Muka, that some lodes 
of considerable size and richness will be discovered ; for un- 
doubtedly these large blocks of tin ore must have come from 
such lodes, and probably at no very great distance from their 
present resting place. The fine-grained black tin-sand, I 
imagine, has been derived either from another formation, or, 
