of the river at four o’clock. As I had found metamor-
phic rocks in the river-bed at Timbong Batu, and the
same at Tertipan, I thought it would be as well to see
an exposure north of Tertipan, between that place and
Binkoka. M j guide told me that there was a section
exposed at a stream called Merrisinsing, a place almost
half-way between Binkoka and Tertipan, on the
eastern shores of Marudu Bay.
Jan. 15th.—I therefore went to Merrisinsing, and
followed up the river there for some distance, finding,
s s I expected, plenty of evidence of metamorphic rock
(serpentine) in the river-bed. The coast is composed
of sandstone inclined at rather a high angle. I t is
therefore evidence that metamorphic rocks extend over
a great portion of this part of Borneo. Probably the
chain of hills running from the Binkoka district and
having their culminating point in Mount Mentapose
(12,000 feet high, according to Mr. Witti) are composed
of metamorphic and igneous rocks, and this will
perhaps be a good mineral field. I intend to devote
my first systematic mineral exploration to this district.
Jan. 16th.—I returned with my party to Kudat.
Jan. 17th and 18th.—Remained at Kudat.
Jan. 19th.—I went in the boat with four men to
Terminissan, on the north-west shore of Marudu Bay,
in order to see what formation prevailed on that side
of the Bay. The Datu Malunad received me very
kindly, and said he would like to hoist the Company’s
flag and bring his people and his cattle down to Kudat
to live. He lives near the source of the Temernissan
River, which flows throughout its whole course
through a tertiary sandstone district. All this west
coast of Marudu must be examined for coal, which is
the only useful mineral likely to occur there.
Jan. 20th.—I left Kudat in the Enterprise, as my
provisions had run short some days ago. We called in
at Sequati, landed provisions, and took away the slave
from Mr. Smith. The pit I found was thirty-eight
feet deep, and thirteen feet of beading had been cut.
They were working in a hard blue clay, which is an
admirable fire-clay, and I should think almost equal to
Stornbridge clay. Many pieces of coal and mineral
resin (similar to that which occurs at Coal Point,
Labuan) had been found, and the pit is now quite dry.