Born in Brussels, Eekman lived in Paris during the twenties in relationship with Mondrian, Chagall and Ernst. His style kept the realistic and fantastic features of Bosch and Breughel. In 1960, Pr Griffon proposed to him the order of an original painting dedicated to the biological medicines and pharmaceutical research, destinated to the decoration of his son's pharmacy recently opened at Paris-Orly airport. This presentation analyzes the genesis of this work.