Official websites use .gov A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
A report of analyses of samples of water and ice from the Mississippi, Minnesota and St. Croix rivers: made in the laboratory of the State Board of Health of Minnesota, in November and December 1886
A report of analyses of samples of water and ice from the Mississippi, Minnesota and St. Croix rivers: made in the laboratory of the State Board of Health of Minnesota, in November and December 1886