Ernst Haeckel

1932 – 1919

• Art Forms in Nature
• Creatures of the Deep
• Art Forms in Nature
• Das rote Blutbild des Kalbes und seine Beeinflussung durch parenterale Injektion eines Eisen-Dextran-Komplexes (Myofer)
• The History of Creation, Or, the Development of the Earth and Its Inhabitants by the Action of Natural Causes