388 Transactions of the Boyal Society of South Africa. 
Masarwa say that the meat remains quite good for a day or two, but if the 
carcase is left longer it swells very much and the meat goes rapidly bad. 
One concludes that it must get very bad indeed, since meat of a carcase 
that has become putrescent in the ordinary way, and which is in such a 
state of putrefaction as to cause the average European to make a detour 
in the veldt to avoid it, is most palatable to the Mosarwa, w^ho doubtless 
looks upon such well-hung game as a dainty dish with plenty of flavour to 
it. Whilst on this subject it may be mentioned that also the Makuba and 
the Eiver Masarwa have not the slightest objection to well-hung fish. 
When you are being punted by them in the swamps they wall with loving 
care recover the decomposed body of a fish floating on the water and 
preserve it in your canoe where it loses no time in announcing its 
presence, which you take care is not unnecessarily prolonged. 
With regard to the arrow poison of the Masarwa, I have not found any 
of the Batawana who knew the process of preparation, except one old man 
who used to hunt with his father's Masarwa servants from childhood, and 
he knew the general process but not in exact detail. The reason for this 
is, presumably, that the matter is of no particular interest to the Batawana, 
since they have used firearms in. hunting for the last forty years or so, 
and doubtless have not taken the trouble to find out. 
Besides the ordinary Sandbelt Mosarwa, there is in N'gamiland 
another species of Mosarwa, the River Mosarwa, who lives on the river- 
system in fixed villages in the same way as the Mokuba, and who, like 
him, lives chiefly by fishing. His language is similar to, but different from, 
that of the proper Mosarwa. He is darker in colour, in shade between the 
yellow-brown of the Mosarwa and the black of the Mokuba, and is no 
doubt the result of a former cross between the two. The Eiver Mosarwa, 
when fishing fails, hunts in the veldt, but is, as one would expect, inferior 
to the Sandbelt Mosarwa as a tracker, veldtsman, and hunter. Like the 
Mokuba, he is very parochial " in his peregrinations, and seldom knows 
the veldt beyond the limits of his own *'naga" (veldt), or small district. 
I have seen many of them get completely lost in the veldt once beyond 
their little radius of 10 miles from their village on the bank of a river 
or swamp. 
With regard to the journey made in July-August, 1910, from Tsau to 
Mababe, the portion from Tsau to Totefi was performed with cart and 
oxen, the southern more circuitous road being taken to avoid flood water 
which extended from Tsau to beyond the Mapenon River at the time. 
Nine and a-half miles from Tsau the Mokolane rivulet, ending in a 
small swamp, was forded. This channel, as stated above, up till the end 
of the seventies flowed into the Lake at its N.W. corner as a large river : as 
large as the Thamalakane is to-day, the old men say, and is still looked 
upon as being the Taoge River, or main channel of the Okovango. The 
