198 JAS. Je SIMPSON—ENTOMOLOGICAL 
and fertile (fig. 6), and consequently there are numerous villages ; yet in spite 
of the frequency of Glossina palpalis at present, it is not too much to say that, 
with some judicious clearing such as that recommended for Bakau, the whole 
area could be very easily freed from this pest. No tsetse occur, so far as I 
= 
Fig. 6.—View at Cape St. Mary, to show the open nature of the surrounding country. 
could ascertain, in the vicinity of the coast bluff, where it is proposed to build 
the new European quarters, and without interfering with the Rifle Range which 
exists there at present, adequate accommodation is available for a sleeping- 
sickness camp without in any way jeopardising the military occupation, or affecting 
satisfactory communication with Bathurst. 
(b.) Kerewan to MacCarthy Island (North Bank). 
The town of Kerewan is situated on the Suarra-Kunda Creek, which is navi- 
gable for ocean-going vessels up to this point. The whole creek is fringed with dense 
mangrove growth and swarms with Glossina palpalis. The town itself lies about 
a mile away from the creek, in an open clearing. The country for several miles 
around is completely denuded of bush and is extensively cultivated. On my visit 
here, a large Norwegian steamer was loading ground nuts at the Kerewan Wharf. 
The captain informed me that although he had been there for four days, he had 
not seen a single mosquito ; but on the other hand, tsetse were very troublesome, 
invading even the saloon below. Practically no clearing had been done in con- 
structing the wharf ; in fact, both bow and stern of the vessel were stuck fast 
in the mangrove thicket. 
From Kerewan the main north-bank road diverges from the river and passes 
through Saba, Salikem, Nja-Kunda, No-Kunda to Lliassa. The whole of this 
area is extensively cleared for cultivation, the ground is sandy, and the 
surrounding country is open and park-like in character, and in no way suited for 
