CONTENTS 
I. PRELIMINARY. page 
1. Introduction - ] 
2. Objects of the expedition 2 
3. History ot the expedition --------2 
4. Terminology employed - ^ 
II. FREETOWN, AND FEVER STATISTICS. 
5. Description of Freeto\\n - - ^ ----- ^. 
6. Statistics - -- -- -- -- ^ 
III. H^MAMCEBID.E IN FREETOWN. 
7. The Hajmamcebida: in intermediary hosts - . - - . S 
8. Methods for ascertaining definitive hosts ------ g 
9. Definitive hosts in Freeto\vn ------- g 
10. The Hsmamoebidiu in the definitive hosts - - - - - 13 
IV. BIONOMICS OF THE CULICID^ IN FREETOWN. 
11. Differences hstween Cidex and J/!0/>ic/es - - - - - - 15 
12. Breeding-places of Cu/ex - - - - - - - 16 
13. Breeding-places of ^««/>/^^/i?/ - - - - - - -16 
14. Distribution of ^«o//^^'/ir/ in Freetown - - - - - - 18 
15. Bionomics of larvae - - - - - - - 19 
16. Bionomics of adult ^/«//;i'/^.f ------- 20 
17. Bionomical questions still recjuiring investigation ----- 24 
18. Source of the Wilberforce ./^/w/i/^^-Z^-j- - - - - - - 25 
V. DISCUSSIONS. 
19. Questions regarciing the parasites ------- 26 
20. Cause of occasional failures in direct cultivation ----- 29 
21. Known facts about malaria explained - ------ 30 
22. Are other insects besides Atiupheles hospitable to the human Hxniama-bid.-v : - 31 
23. Are other vertebrates besides man hospitable to the luiman Ha-mamcebida' - - 32 
24. Is the Life-history of the Hremamctbidre fully known ? - - - - 33 
VI. PREVENTION. 
25. Measures indicated - - - - - - - - 37 
26. Precautions against the bites of gnats - - - - - 38 
27. Operations for reducing tlie numbers of Atiopheks ----- 40 
28. Under what conditions do operations agains Anopheles promise to be most successful 41 
29. Recommendations -------- 43 
VII. REMARKS. 
30. Miscellaneous remarks -------- 45 
ADDENDA. 
1. Description of two species Anopheles, by Major Giles, I. M.S. - - - 49 
2. Observations at Freeto\vn, Accra, and Lagos, b}- Dr. Fieldinc;-Ouli) - - 51 
REFERENCES. 
PLATES AND MAPS. 
