40 
The following table presents these conditions, as nearly as we have 
been able to ascertain them, comparatively with corresponding condi- 
tions in Wasliington: 
City. 
Population. 
Ratio of colored 
! to white in pop- 
ulation. 
General sanitary 
condition. 
Sewerage 
system. 
Riclmiond 
About one-third as much. 
Larger 
Generally poorer . . 
Worse. 
Baltimore 
Xearlv twice, a.s much 
Smaller 
.do 
Do. 
Philadelphia 
About five times as much 
Much smaller. . 
.do. . . 
Xo better. 
Xew York 
About twelve times as much 
L do. - 
do 
Xo better. 
Boston 
Xearly twice as much 
.do 
do 
Xo better. 
Savannah 
About one-fifth as much 
Larger 
.. .do 
Worse. 
Xew Orleans 
About the same 
! 1 
do 
Worse. 
Death rates. 
City. 
Duration of warm-weather 
season. 
1900-19a5. 
, 1906. 
1907-8. 
Washington 
56.2 
49.3 
35. 5 
Richmond 
About the same 
68.1 
47.0 
48.5 
Baltimore 
do 
35.3 
32.8 
36.0 
Philadelphia. . . . 
Somewhat shorter 
46.9 
72.4 
47.0 
Xew York 
Shorter ... 
18.9 
15.4 
14.7 
Boston 
Much shorter 
22.9 
20.2 
18.1 
Savannah.. .. 
Longer 
45.9 
40.8 
Xew Orleans. 
Much longer 
40.7 
29.6 
40.3 
In the six yearn 1900 to 1906 the typhoid death rate in IVasliington 
was higher than in any other of these cities except Richmond, Va- 
in 1906, the first year after the filtration of the water supply, the 
rate was higher than that of any other of the cities except Philadel- 
phia. In 1907 and 1908 the rate in TTashington was lower than 
those of Richmond, Baltimore, Philadelphia, and Xew Orleans. 
It requires but a brief study of this table to force one inevitably to 
the conclusion that TTashington has a much higher typhoid death 
rate than it shoifid if only those conditions believed to affect the 
‘‘prosodemic ” typhoid are considered. 
TTith the exception of Boston and Xew York, the conditions under 
which the milk supply is collected and handled are frdly as well, if not 
better, guarded in TTashington than in the other cities. Probably 
home heating of milk is done to a relatively much greater extent in 
Xew Orleans than in TTashington, but this does not apply to Balti- 
more. 
This broad, but supeificial, comparison suggests that either water 
or some imknown factor has played a major role in the causation of 
TTashington’s typhoid fever. 
