242 
TYPHOID FEVEK IN DISTEICT OF COLUMBIA. 
Berkeley Springs, the county seat of Morgan County, W. Va., has 
a population of about 800, which is much augmented during the 
summer. It takes its water from thermal springs. It has no public 
sewerage, but the hotels sewer into the run about a half mile below 
the town. 
Scattered cases of typhoid occur throughout the county, and 
while few, if any, originate in the toYTi itself, the fact of its being the 
county seat, a summer resort, health resort, and, in other words, a 
place to which people would go who were suffering from the vague 
symptoms of the invasion of typhoid, or who were convalescing from 
the disease and perhaps still discharging the bacilli with their excre- 
tions, raises it considerably in importance. 
Some miles below Hancock the Chesapeake and Oliio Canal enters 
and becomes one with the river for a distance of about one-half mile, 
resuming its separate way at Dam No. 5, 6 miles above Williamsport. 
At Williamsport, 82 miles above Great Falls, Conococheague Creek 
joins the Potomac. Conocochea^e Creek drains a well-populated 
area of 580 square miles. It rises in Adams County, Pa., and receives 
its first important pollution from Chambersburg. 
Chambersburg, Pa., a towm having a population of 8,864, and 
removed 127 miles above Great Falls, has a public water supply 
dravm from the creek, but no sewerage system. Cesspools are in 
general use, but there are three or four private sewers, which empty 
into the creek and which serve three or four hotels, the trust com- 
pany, the court-house, an industrial establishment with 300 employ- 
ees, some 40 or 50 private dwellings, and a school for girls. Through 
its little tributary. Falling Spring Bun, it receives additional pollu- 
tion from a steam laundry, from the Cumberland Valley Baihoad 
shops and office building, where there are in all some 300 men; from 
a shoe factory it receives the sewage of 90 employees. The creek is 
also polluted by the sewage from the Western Maryland Baihoad 
depot and by the offal of tlmee slaughterhouses. 
Some cases of typhoid occur here every year. Ten cases were 
reported between Januar}^ 1 and September 1, 1906. 
About 20 miles below Chambersburg the creek is joined by a little 
stream — Moss Bank Bun. This stream reaches the eastern part of 
Greencastle, where its waters sink into the ground apparently to 
reappear on the tovm’s western edge. In its subterranean course 
it is probably polluted by the cesspools of the city. The tovm has a 
population of 1,463. A water company supplies it vdth water from 
two springs 2 miles east of the city. 
Five miles below Greencastle the waters of Conococheague Creek 
are augmented by junction with its west branch, wliich is polluted 
at Mercersburg through a little tributary stream. 
