622 
SEDGWICK AND WINSLOW. 
BACILLUS OF TYPHOID FEVER. 
By quarters the difference between the two forms of fever, then just beginnino- to be 
clujirly cli.stliiguisheJ, \vas sLown very markedly. 
QuARTEULv Admissions. 
Typhus Fever, 
First Quarter . 1074 
Second " 1088 
Third « 725 
Fourth " . G19 
Typhoid Fever, 
275 
258 
650 
637 
Dr. T 
concluded that "typhus is most prevalent in spring, and the 
in autumn, while enteric fever is least prevalent in spring, and most pi 
autumn." In the same year, Hirsch, in the first edition of 
extensive resum^ of current 
) 
he " Historisch-geogra]iU- 
opinion on the subject. 
scheii Pailiolorjie,'' ^^^> gave an 
lie quoted statistics to show that of 519 typhoid epidemics, 168 occurred 
140 
m 
132 
typhoid cases at 
summer, and only 79 in spring. He also printed a table of 
hosp 
of Lausanne and Gene 
Lowell and Nassau, and 
f typhoid deaths in the canton of Geneva and the State of Massachusetts, sh 
every case. Summer occupi< 
an autumn maximum 
and a spring minimum in 
second place except at Nassau and the canton of Ge 
As to the weather influences 
prevalence of the disease he quoted very conflicting opini 
V^ 
iM-ake and Huss attributed the autumnal fever largely to the summer temperature, 
Davidson and Lombard considered a relatively high humidity as of prime significance. 
Thomson maintained that both factors were of importance, and Seitz, Cless, and Franque 
denied any effect of meteorological conditions 
Another review of the 
of typhoid fever was published by Murchison in 1862 
He quoted nine English and 
admis 
Octob 
cntal authorities as recording the autumnal maximum, and added a table of 
ions into the London Fever Hospital which showed a steady rise from Apri 
ir. Fiedler, in the same year,^^) noted that typhoid fever in Dresden was m 
more abundant in the second half of the year than in the first, and gave the follow 
table of typhoid admissions for eleven years. 
1 
Admi 
ss 
loxd TO THE Dresden Hospital, 1850-60. 
J 
M 
IJt 
A 
82 
J ■■ - 
M 
83 
1 
1 
J 
105 
113 
A 
191 
B 

1 
N 
143 
D 
IIG 
1 2:t 
189 
132 
