extending across the wings from tip to tip, each spot being
shaped exactly like a small triangular feather, and having very
much the effect of a row of the wing coverts of the Mexican
trogon, laid upon black velvet. The only other marks are a broad
neck-collar of vivid crimson, and a few delicate white touches on
the outer margins of the hind wings. This species, which was then
quite new and which I named after Sir James Brooke, was very
rare. It was seen occasionally flying swiftly in the clearings,
and now and then settling for an instant at puddles and muddy
places, so that I only succeeded in capturing two or three
specimens. In some other parts of the country I was assured it
was abundant, and a good many specimens have been sent to
England; but as yet all have been males, and we are quite unable
to conjecture what the female may be like, owing to the extreme
isolation of the species, and its want of close affinity to any
other known insect.

One of the most curious and interesting reptiles which I met with
in Borneo was a large tree-frog, which was brought me by one of
the Chinese workmen. He assured me that he had seen it come down
in a slanting direction from a high tree, as if it flew. On
examining it, I found the toes very long and fully webbed to
their very extremity, so that when expanded they offered a
surface much larger than the body. The forelegs were also
bordered by a membrane, and the body was capable of considerable
inflation. The back and limbs were of a very deep shining green
colour, the undersurface and the inner toes yellow, while the
webs were black, rayed with yellow. The body was about four
inches long, while the webs of each hind foot, when fully
expanded, covered a surface of four square inches, and the webs