Digitalis and cinchona were herbal remedies used in the treatment of heart disease. Specimens of each plant are displayed. A package of dried foxglove herb from around 1900, and intravenous quinine in glass ampoules illustrate two of the many forms that pharmaceuticals have taken in this century.

31. The foxglove herb, formerly used in the treatment of heart disease. On loan from The State Historical Society, Des Moines, Iowa.

32. Intravenous quinine dihydrochloride. On loan from The State Historical Society, Des Moines, Iowa.

33. The digitalis, or foxglove, plant which William Withering discovered in the late 18th century to be an effective remedy for congestive heart failure. Heirs of Hippocrates, 1980. Hardin Library for the Health Sciences, The University of Iowa.