Volume 2

A study of the pollution and natural purification of the Ohio river / Prepared by direction of the surgeon general.

  • United States. Public Health Service
Date:
1924-
Catalogue details

Licence: Public Domain Mark

Credit: A study of the pollution and natural purification of the Ohio river / Prepared by direction of the surgeon general. Source: Wellcome Collection.

    51/412 (page 23)
    YO vo) Soiau| — 5 amame=—— Actual Rainfall —--—— Actual Runott See ea JOU 2 |[OUIOY Fig. 5.—Rainfall and run-off on the Ohio River watershed above Louisville and on entire water- shed, by months, 1914 and 1915, and normal rainfall for period of record