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Map no. 15, District of Columbia, showing the location of residences at which cases of diphtheria occurred in 1909.
Summary
From: Bulletin 78, Hygienic Laboratory, P.H. & M.H.S.
Oriented with north toward the upper left.
Includes note.
LC copy annotated in pencil and darkened.
Available also through the Library of Congress Web site as a raster image.
DCP
Tags
Date
1909
Contributors
Hygienic Laboratory (U.S.)
Source
Library of Congress
Copyright info
Public Domain
