Report of streams examination, chemic and bacteriologic : of the waters between lake Michigan at Chicago and the Mississippi river at St. Louis, for the purpose of determining their condition and quality before and after the opening of the drainage channel / Made under the direction of Arthur R. Reynolds, M. D., commissioner of health ... pub. by authority of the trustees of the Sanitary district of Chicago.

Licence: In copyright

Credit: Report of streams examination, chemic and bacteriologic : of the waters between lake Michigan at Chicago and the Mississippi river at St. Louis, for the purpose of determining their condition and quality before and after the opening of the drainage channel / Made under the direction of Arthur R. Reynolds, M. D., commissioner of health ... pub. by authority of the trustees of the Sanitary district of Chicago. Source: Wellcome Collection.