Abstract

References
1.
Abbott
P. H.
(1952 ) E. Afr. med, J. , 29 , 297 .
2.
Anderson
R. G.
(1909 ) Bull. Sleep. Sickn. Bur. , 1 , 346 .
3.
Ashcroft
M. T.
(1959 ) Trop. Dis. Bull. , 11 , 1073 .
4.
Balfour
A.
(1904 ) Brit. med. J. , ii , 1455 .
5.
Bloss
J. F. E.
(1945a ) Trans. R. Soc. trop. Med. Hyg. , 39 , 59 .
6.
Bloss
J. F. E.
(1945b ) Sudan Notes , 26 , 1 .
7.
Bloss
J. F. E.
Hunt
A. R.
(1945 ) Trans. R. Soc. trop. Med. Hyg. , 39 , 43 .
8.
Chalmers
A. J.
O'Farrell
W. R.
(1914 ) J. trop. med. (Hyg.) , 17 , 273 .
9.
Drew
C. M.
(1911 ) Bull. Sleep. Sickn. Bur. , 3 , 473 .
10.
Ensor
H.
(1908 ) Rep. Wellcome trop. Res. Lab. , 3 , 91 .
11.
Ensor
H.
(1909 ) J.R. Army med. Cps. , 13 , 376 .
12.
Ensor
H.
(1914 ) J.R. Army med. Cps. , 18 , 31 .
13.
Pritchard
Evans E.
(1937 ) Witchcraft among the Azande . London .
14.
Gibbens
E. G.
(1941 ) Ann. trop. Med. Parasit. , 35 , 195 .
15.
Greig
E. D. W.
(1905 ) J.R. Army med. Cps. , 5 , 471 .
16.
Greig
E. D. W.
(1907 ) Rep. Sleep. Sickn. Comm. roy. Soc. , 8 , 86 .
17.
Lewis
D. J.
(1949 ) Sudan Notes , 30 , 179 .
18.
Lewis
D. J.
(1951 ) Sudan Notes , 32 , 96 .
19.
MacKenzie
C.
(1911 ) Bull. Sleep. Sickn. Bur. , 3 , 89 .
20.
Mathias
H. B.
(1911 ) Rep. Wellcome trop. Res. Lab. , 4 , 31 .
21.
Maurice
G. K.
(1930 ) J.R. Army med. Cps. , 55 , 161 , 241 .
22.
Ranken
H. S.
(1913 ) Trop. Dis. Bull. , 1 , 507 .
23.
Sandwith
F. M.
(1912 ) Sleeping Sickness. Res. Def. Soc. (Pamphl.), Lond. .
24.
Symes
C. B.
Vane
R. T.
(1937 ) E. Afr. med. J. , 14 , 35 .
25.
Thompson
R. J. C.
(1911 ) Bull. Sleep. Sickn. Bur. , 3 , 326 .
26.
Wyld
J. W. G.
(1949 ) Sudan Notes , 30 , 47 .
