49 
Among them, however, we find but one infection (TAchuris) , or only 
one-tenth the number present among the whole 108 patients. In 
other words, while the 108 patients with histories of both rural and 
urban life gave 9.26 infections per 100, the 26 with a history of city 
life gave only 3.84 infections per 100. 
This rate of infection among patients admitted to the Connecticut 
hospital from city' life within one year prior to examination is consider- 
ably lower than that among the white patients admitted within the 
same period to the Government hospital from the city of Washington 
(5.41 per 100). 
While the results obtained for city residents in Connecticut are 
based on only 26 patients, presenting but 1 infection, they are at least 
confirmatory of the view that intestinal parasites are less frequent 
among the urban than among the rural population in that State, and 
indicate further that the higher rate of infection present among 
patients admitted from Connecticut than among those admitted 
from the District of Columbia (Washington) is due to the fact that 
the latter were admitted almost wholly from city life while the Con- 
necticut patients were in part residents of country districts. 
Occupation. — The male civilians are so equally distributed among 
so many different occupations that the statistics' for any one group 
remain too small to permit of definite conclusions in regard to the 
relative prevalence of intestinal worms in the various trades, pro- 
fessions, etc., represented among our cases. There remain, however, 
the male patients at the Government hospital admitted from the 
military service o I the United States. These men present a history 
of such a distinct and special nature that they are considered under a 
subheading. 
Military service .— Besides soldiers admitted to the hospital directly 
from active service in the United States Army, we consider in this 
class of patients sailors received from the Navy and old soldiers from 
the National Soldiers’ Homes. The soldiers received more or less 
immediately from active service fall naturally (from a parasitological 
viewpoint) into three groups, namety, those admitted before the 
Spanish- American war, hence from the Regular Army posts; those 
admitted during and after the war, hence with a history of life in the 
reserve camps; and, thirdly, those admitted after service in the Phil- 
ippine Islands. The soldiers admitted to the hospital from service 
in Cuba and Porto Rico had, with very few exceptions, been dis- 
charged before our examinations commenced. 
In connection with the above groups of patients, having a history 
of military service, it will be interesting to compare the 397 male 
civilians admitted to the Government hospital from the District of 
Columbia. 
32004 — No. 28—06 4 
