54 



of cases, especially in view of the absence of parasites from the 

 peripheral blood. On the eastern side G. palpalis is more common, 

 but there the disease is much less frequent. This species cannot, 

 however, be excluded for, though rare, it has been found in every 

 place which has been carefully searched. G. tacliinoides is more 

 abundant, and especially associated with the sleeping sickness areas. 

 The French Commission was struck by many examples which they 

 found of several members of one family living in the same hut being 

 infected, while others in the same village were not attacked, and they 

 therefore argue the existence of a supplementaiy night-biting carrier. 

 Twenty-three bugs collected from the beds of sleeping sickness patients 

 were fed on a guinea-pig for 18 days, at the end of which time only 

 two remained alive. The guinea-pig remained perfectly healthy, and 

 no trypanosomes were found in its blood after 43 days. This experiment 

 is, however, not conclusive, as guinea-pigs are not highly susceptible 

 to the human trypanosome. None of the domestic animals examined 

 were found to harbour trypanosomes of the human type. 



In an appendix Dr. J. W. Scott Macfie gives details of the examin- 

 ation of, and experiments with, 145 wild G. tachinoides, with the result 

 that T. pecaudi {T. iigandae), T. pecorum {T. congolense), and T. vivax 

 were found to be transmitted by Glossina tacliinoides, and were isolated 

 ;by feeding flies caught in the neighbourhood of Ikotobo on healthy 

 animals. 



In another appendix Mr. Eakin, of the Kwa Ibo Mission, brings 

 evidence to show that sleeping sickness had long been known to the 

 natives, who even attributed it to the bite of a fly. He also gives 

 an account of various native customs in connection with the disease. 



A bibliography is appended. 



Macfie (J. W. Scott). Notes on some Blood Parasites collected in 

 Nigeria.^ — Ann. Trop. Med. Parasit., Liverpool, Ser. T. M., viii, 

 no. 3, 15th December 1914, pp. 439-464, 2 pis. 



In the course of experiments with trypanosomes a number of tsetse 

 flies were dissected at Ikotobo, and in the lower half of the gut of a 

 female Glossina tachinoides, innumerable spirochaetes were found. 

 This fly had been fed for some days on a clean guinea-pig, but no 

 spirochaetes were ever found in its blood, nor did it develop spiro- 

 chaetosis. Subsequent experiments, in which wild G. tachinoides were 

 fed on fowls, proved negative. 



ScHWETZ (Dr. J.). Quelques observations pr61iminaires sur la Morpho- 

 logie et la Biologie de la Larva, de la Nymphe et de I'lmage de 



V Auchmeromyia luteola^ Fabr. [Some prehminary observations, 

 on the Morphology and Biology of the Larva, Nymph and Imago, 

 of Auchmeromyia luteola.] — Ann. Trop. Med. & Parasit. 

 Liverpool, Ser, T. M., viii, no. 3, 15th December 1914, 

 pp. 497-507. 



The author collected a large quantity of A. luteola at Kabinda and 

 placed a certain number of them in flasks with a little sand. A few 



