REFERENCES
- Burtt, E. (1946). Salivation by Glossina morsitans on to glass slides: a technique for isolating infected flies. Ann. Trop. Med. Parasit., 40, 141.
- Chorley, J. K. (1929). Experiments in grass fires against Glossina morsitans in Southern Rhodesia. Bull. Ent. Res., 20, 377.
- Desowitz, R. S., and Fairbairn, H. (1955). The influence of temperature on the length of the developmental cycle of Trypanosoma vivax in Glossina palpalis. Ann. Trop. Med. Parasit., 49, 161.
- Desowitz, R. S., and Fairbairn, H. and Watson, H. J. C. (1952). Studies on Trypanosoma vivax. III: Observations on the maintenance of a strain in white rats. Ibid., 46, 92.
- Fairbairn, H. (1947). The infection of rats by trypanosomes (T. rhodesiense) taken from man early in the disease. Ibid., 41, 218.
- Fairbairn, H. (1953). Studies on Trypanosoma vivax. IX: Morphological differences in strains and their relation to pathogenicity. Ibid., 47, 394.
- Fairbairn, H. and Culwick, A. T. (1950). The transmission of the polymorphic trypanosomes. Acta Trop., Basel, 7, 19.
- Jackson, C. H. N. (1949). The biology of tsetse flies. Biol. Rev., 24, 174.
- Johnson, W. B., and Lloyd, Ll. (1923). First report of the tsetse-fly investigation in the northern provinces of Nigeria. Bull. Ent. Res., 13, 373.
- Lloyd, Ll., and Johnson, W. B. (1924). The trypanosome infections of tsetse-flies in Northern Nigeria and a new method of estimation. Ibid., 14, 265.
- Lloyd, Ll., and Johnson, W. B. Young, W. A., and Morrison, H. (1924). Second report of the tsetse-fly investigation in the northern provinces of Nigeria. Ibid., 15, 1.
- Nash, T. A. M. (1942). A study of the causes leading to the seasonal evacuation of a tsetse breeding-ground. Ibid., 32, 327.
- Nash, T. A. M. and Page, W. A. (1953). The ecology of Glossina palpalis in Northern Nigeria. Trans. R. Ent. Soc. Lond., 104, 71.
- Squire, F. A. (1951). Seasonal variation in the incidence of Trypanosoma vivax in Glossina palpalis (R.-D.). Bull. Ent. Res., 42, 371.
- Ziemann, H. (1912). Über die Schlafkrankheit in Grosskamerun. Arch. Schiffs- u. Tropenhyg., 16, Bhft., 398. (Quoted from Bull. Sleep. Sickn. Bur., 1912, 4, 305.)