3I0SQUIT0ES AND YELLOW FEVER 123 



quainted with Dr. Finlay and with his mosquito theory, 

 and therefore, under these late conditions and with the 

 malaria case proven, he established a commission of army 

 surgeons, composed of Major Walter C Heed, Surg-eon, 

 U. S. A., Dr. James Carroll, Acting- Assistant Surgeon, U. 



Fig. 30.—St(go7nyia fasciata, ndult female ; enlarged. 



illustration.) 



(Author's 



S. A., Dr. Jesse W. Lazear, Acting Assistant Surgeon, 

 U. S. A., and Dr. A. Agramonte, Acting Assistant Sur- 

 geon, U. S. A., and instructed them to investigate the 

 disease from the mosquito standpoint. The investiga- 

 tions carried on by this commission during the early 



