The Earth and Its Inhabitants
- Volume 1: Greece, Turkey in Europe, Rumania, Servia, Montenegro, Italy, Spain, and Portugal
- Volume 2: France and Switzerland
- Volume 3: Austria-Hungary, Germany, Belgium, Netherlands
- Volume 4: The British Isles
- Volume 5: The North-East Atlantic, Islands of the North Atlantic, Scandinavia, European Islands of the Arctic Ocean, Russia in Europe
- Volume 6: Asiatic Russia: Caucasia, Aralo-Caspian Basin, Siberia
- Volume 7: East Asia: Chinese Empire, Corea, and Japan
- Volume 8: India and Indo-China
- Volume 9: South-Western Asia
