FLIES AND INFANTILE PARALYSIS 23 



former as well. This biting fly is commonly known 

 as the " stable-fly." It is very frequent in England 

 during the summer, and bites viciously in the daytime 

 and evening. I have found them in Egypt, South 

 Africa, Syria, India ; and in Germany and Switzerland 

 they are very common and annoying. The measures 

 advised in this book should lead to their rapid re- 

 duction, and then perhaps the disease they convey 

 will be reduced also. 



