176 



THE POPULAR SCIENCE MONTHLY 



Dr. Walter Reed, U. S. A., president of the IT. S. Army Yellow 

 Fever Commission, he who is to he given the principal credit for the 

 scientific demonstration of the transmission of yellow fever by a mos- 

 quito. Dr. Eeed died shortly after the complete demonstration was 

 announced, his death being attributable in part to the strenuous work 

 which he had done in connection with these investigations. He was 

 always very loath to have his picture published, and for a long time 

 the only one known was that taken in his early manhood, and which the 

 writer used in an article in the Centura Magazine of October, 1903. 

 The present picture is evidently from a photograph taken not long 

 before his death, and has been given to the writer by the Army Medical 

 School at the request of Surgeon-General Gorgas. 



