7/ini 
□□ 
THE Cirt" <2- 
WASHINGTON ^ 
SHOWING 
LOCATION OF RESIDENCES 
OF 
CASES OF TYPHOID FEVER 
I JULY, 1907. ^ 
• CASES HAVING DEFINITE ONSET JULVL 
+ CASES HAVING DEFINITE ONSET JUL' 
I 
TWO OR MORE DOTS Of? CROSSES IN ^ 
CIRCLE INDICATE TV/0 OR MORE CASES 
SAME HOUSE. 
IMPORTED CASES NOT CHARTED. 
BULLETIN 44, HYGIENIC LABORATORY, P, H. 
