Although the cold in Minnesota is so severe in winter, those who have lived a length of time assert that it is far from being unfavorable to health, there being no wind stirring, even -when the thermometer has fallen 35 below zero before breakfast, as it does sometimes, or when even the mercury congeals.
This article was originally published with the title "Climate of Minnesota" in Scientific American 8, 17, 134 (January 1853)
doi:10.1038/scientificamerican01081853-134c