REPORT ON MOSQUITOES. 467 



It is noteworthy that Mr. Allen joins Dr. Gray and Mr. 

 Winship in his estimate of the value of the Duffield amendment 

 to the health laws, and I may say here that wherever any efforts 

 have been made by local boards, the amendment has cleared the 

 way and simplified matters for them. 



Nor does Mr. Allen say aught concerning the educational 

 campaign of the society. This is one of the most important fea- 

 tures of their work and the unique circular prepared under the 

 direction of Mr. Spencer Miller is worthy of insertion here. 



