62 
goes dry, and in the wet season measures from ten to twenty yard' in breadth On? 
could not imagine a place better-suited for tsetses ; yet three competent obsentn 
(Dr. Broden, Dr. Polidori and J. (.. T.i duri ieral months mw now 
there, although they were looked for many times. The observation might b? 
explained by the fact that the stream is used as a latrine, and in hot weather reel* 
with effluvia. If this explanation be accepted it seenx strange that G falftlis bn 
twice been seen in latrine sheds. 
Tsetse flies will sometimes follow persons or animals for a 
considerable distance. 
In the Lower Congo the belief that ( 7 . falfa 
have not confirmed the observation. We are told that in the neighbour!., d U 
Leopoldville G. falfalis was called by m . 
(Dr. Broden). 
tsetses we!° b f ala ’ “ , Catt !f St3tion in the Low “ ( aaaerted tttf 
tsetses?we r e formerly absent. Pigs were introduce,., and *„», ,, • • 
brackish h wa?er ni of^'m ^ * ' Ime a hm,se P ,ac#d a mile ft t, the 
KHe!,! f * mangrove -swamp where were a , d - ; 
throughSeew^rSr^These^ h . ouse by per * vt ' ' ! J" ' 
. ■*-—.—^ 
used as a laboratory ^Two tan| f '’T't' "" had ' '' r ’ 
ff. taltalis followed t hem btOU « ht ; two or three 
support the idea^thfd tsetTe'fl^T^Ln 150 ^ 31 ’ 0 " " as « athered »'» th ' Cong, tn 
many (7. jalfaUs were seen in W iS P "" 1 
of any sort. ** “ ,OCa, ' tles " •> gJe 
seen at P places'* where* thev ^ tsetse n ' es were occasionally not 
When the exp^on Z T” P^sent 
I ron ' to Pania Mutombo emT"" >' " *"* ,h, ‘ 11 overland 
several of that ,setse dies were not found at 
and Lukola during the ove I ^ ne3r K:,lo,nbc ' Oibwe, Miambwe 
was usually made ^ er,and J°«ney of the expedition Search 
number of porters had “d bridges after a considerable 
fl'es were not f ound in ** Sli " p —The 
A e ' r presence and although human'T’ although ,he natives asserted 
earch of one or trypanosomiasis existed localh 
fjre ** bud at first s Z/ dt o7 u ^ at a ™ple of streams 
-;" ke 
i, ,.. 
