SIGNIFICANCE OF STEGOMYIA FASCIATA IN WEST AFRICA. 



261 



XI. Relationship of the Distribution of the Stegomyia 

 TO Yellow Fever. 

 Without Stegomyia fasciata there could be no yellow fever. The dis- 

 tribution of the Stegomijia in West Africa today abundantly confirms this 

 statement ; for if the Stegomyia map is compared with the yellow fever map 

 of West Africa_, it will be seen that they are in close agreement. 



From the following tables it will be seen how widespread is the distribution 

 of yellow fever in West African colonies, and the very large number of 

 years in which it has made its appearance. 



'Towns in West Africa in wMcli Yellow Fever has been recorded. 





Freetow]]. 







Elmina. 





Bathurst. 







Kitta. 





Konakri. 







Salt Pond. 





Ht. Louis. 







Accra. 





Dakar. 







Axim. 





Island of Goree. 





Grand Bassam! 





Bakel, Upper 



Senegal. 





Klein Dopo. 





Kayes and Dioubeba^ Senegal. 



Lome. 





Bamako, Upper Senegal 





Anecko. 





Ascension. 







Grand Popo. 





Boa Vista. 







Porto Novo. 





Fernando Po. 







Kotonou. 





Cape Coast Castle. 





Lagos. 





Sekondi. 







Calabar. 





Saw Mills. 









{ears in ivhicJi Yellotc Fever has a^ypeared in Sporadic or Epiden 







in West 



Africa. 





1807 



1826 



1844 





1878 



1809 



1827 



1845 



1862 







1828 



1846 



1863 







1829 



1847 



1864 





1812 



1830 





1865 

 1866 



1883 ; 



1814 





1850 



1867 

 1868 



1884 ; 



1816 





1817 



1835 



1818 



1836 



1819 



1837 



1820 



1838 



1821 



1839 



1822 



1840 



1823 



1841 



1824 



1842 



1825 





1852 



1872 

 1873 



1858 

 1859 



1890 

 1891 



1893 

 1894 



1895 

 1896 

 1897 

 1898 

 1899 

 1900 

 1901 

 1902 

 1903 

 1904 

 1905 

 1906 



190'8 

 1909 

 1910 



