molest it.

A small ant masters the common fly by seizing a wing or leg, and
holding on till the fly is tired out; at first the fly can move about
on the wing without inconvenience, but it is at last obliged to
succumb to an enemy very much smaller than itself.

A species of Touraco, new to me, has a broad yellow mask on the upper
part of the bill and forehead; the topknot is purple, the wings the
same as in other species, but the red is roseate. The yellow of the
mask plates is conspicuous at a distance.

A large callosity forms on the shoulders of the regular Unyamwesi
porters, from the heavy weights laid on them. I have noticed them an
inch and a half thick along the top of the shoulders. An old man was
pointed out to me who had once carried five frasilahs (= 175 lbs.) of
ivory from his own country to the coast.

_30th August, 1867._--We marched to-day from Chitimba's village after
three months and ten days' delay. On reaching Ponda, 2-1/2 hours
distant, we found Tipo Tipo, or Hamidi bin Mohamad, gone on, and so we
followed him. Passed a fine stream flowing S.W. to the Lofu. Tipo Tipo
gave me a fine fat goat.

_31st August, 1867._--Pass along a fine undulating district, with much
country covered with forest, but many open glades, and fine large
trees along the water-courses. We were on the northern slope of the
watershed, and could see far. Crossed two fine rivulets. The oozes
still full and flowing.

_1st September, 1867._--We had to march in the afternoon on account of
a dry patch existing in the direct way. We slept without water, though
by diverging a few miles to the north we should have crossed many
streams, but this is the best path for the whole year.

Baraka went back to Tipo Tipo's village, thus putting his intention of
begging among the Arab slaves into operation. He has only one
complaint, and that is dislike to work. He tried perseveringly to get
others to run away with him; lost the medicine-box, six table-cloths,
and all our tools by giving his load off to a country lad while he
went to collect mushrooms: he will probably return to Zanzibar, and be
a slave to the Arab slaves after being a perpetual nuisance to us for
upwards of a year.

_2nd September, 1867._--When we reached the ford of the Lofu, we found
that we were at least a thousand feet below Chitimba's. The last six
hours of our march were without water, but when near to Chungu's
village at the ford we came to fine flowing rivulets, s