LIST OF CHARTS AND MAPS. 
Page. 
AP Xo. 1 . Map of 'Wasliington showing cases of typhoid fever, month of May, 
1907 A 21 
No. 2. Map of Washington showing cases of typhoid fever, month of 
June, 1907 21 
No. :i. i\Iap of IVashington showing cases of typlioid fever, month of 
July, 1907 21 
No. 4. Map of IVashington showing cases of typhoid fever, month of 
August, 1907 : 21 
No. 5. Map of IVashington showing cases of typlioid fever, month of 
September, 1907 21 
No. 6. ]\Iap of IVashington showing cases of typhoid fever, month of 
October, 1907 21 
No. 7. Map of Washington showing the distribution of cases, Ma}" 1 to 
November 1, 1907 64 
Chart No. 1. Showing cases according to onset of illness in 5-day periods, 
1907 ^ A 20 
No. 2. Showing cases according to onset of illness by days, 1907 20 
No. 3. Showing mortality curves by months, from typhoid and typho- 
malarial fevers, 1878 to 1907, inclusive 64 
No. 4. Showing number of cases, according to date of onset, among 
the customers of the principal milk dealers in Washington, 
1907 • 49 
(T) 
