132 



TROPICAL MEDICINE AND HYGIENE 



200 miles. There is every probability that it will become 

 more widely diffused in Africa, though it is less prevalent 

 in some places, such as Liberia, where at one time it was 

 common. The intermediate hosts belong to the genus 



PATE Sepzs 26 27 2B I 29 SO Oct/ 2 3 I ? ( 5 . I g 



FIG. 36. Chart I, 1909. Onset of disease and marked temporary effect of soamin 

 in the second week. 



DATE \Nor9 I IP I // I 12 \ 13 \ 14 1/5 NOK3 \ 2* \ 25 26 \ 27 28 ,2.9^ J 



FIG. 37. Chart II, 1909. Third and fifth weeks. Imperfect control of tern- 

 jperatuie by soamin and atoxyl in large doses. 



Glossina, and the species implicated are Glossina palpalis 

 and possibly G. fusca, and for the form known as 

 Trypanosoma rhodesiense, G. morsitans. Glossinac are 

 only found in Africa and Arabia, and suitable species to 



