254 bacot: mosquitoes and the danger of malaria. 
The Chart showing the distribution of Anophelene mosquitos 
(fig. 9), if compared with that showing the past occurrence 
of Ague in England (fig. 8opposite), demonstrates (as the authors 
FIG. 9.—THE KNOWN DISTRIBUTION OF THE ANOPHELES MOSQUITOES IN 
ENGLAND AND WALES. 
of the paper to which I acknowledged my indebtedness in my 
introduction point out) that the distribution of the disease is 
more restricted than that of the mosquitoes. While it is possible 
