The papers document research into the nutritional properties of Cuban plants, which was conducted in Cuba between 1944 and 1962 by Hady López who was a member of Fundación de Investigaciones Médicas in Havana, Juan Navia and other researchers. The papers also include copies of published works on tropical anemia written by Dr. Rubén López-Toca. Materials consist of articles, booklets, reports and a poster.