BULLETIN No. 5 OF THE HYGIENIC LYBORATOKY, 
Treasury Department, JJ. S. ^larine-Hospital Service, 
AVAT^TEK AA’YAIAX, Surgeon-General. 
AN INVESTIGATION 
OF A 
PATHOGENIC MICROBE 
{B. iyplii murium — Danyz) 
APPLIED TO THE 
DESTRUCTION OF RATS. 
iM. .1. ROSENAIJ, 
PA5.SED ASSISTANT SURGEON, DIRECTOR HYGIENIC LABORATORY, 
U. a MARINE-HOSPITAL SERVICE. 
I). C. 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
1901. 
