Georg Hartwig – författare

Aerial World

A Popular Account of the Phenomena and Life of the Atmosphere

Aerial World

A Popular Account of the Phenomena and Life of the Atmosphere

Polar And Tropical Worlds

A Popular And Scientific Description Of Man And Nature In The Polar And Equatorial Regions Of The Globe: Embracing The Combined Results Of All The Explorations, Researches And Discoveries Of Modern Times

Polar And Tropical Worlds

A Popular And Scientific Description Of Man And Nature In The Polar And Equatorial Regions Of The Globe: Embracing The Combined Results Of All The Explorations, Researches And Discoveries Of Modern Times

Sea and Its Living Wonders

A Popular Account of the Marvels of the Deep and of the Progress of Maritime Discovery From the Earliest Ages to the Present Time

Sea and Its Living Wonders

A Popular Account of the Marvels of the Deep and of the Progress of Maritime Discovery From the Earliest Ages to the Present Time

Denizens Of The Deep

An Account Of Fishes, Molluscs, Crustacea, &c., From "the Sea And Its Living Wonders."

Subterranean World

Denizens Of The Deep

An Account Of Fishes, Molluscs, Crustacea, &c., From "the Sea And Its Living Wonders."

Subterranean World

The Polar World

A Popular Description of Man and Nature in the Arctic and Antarctic Regions of the Globe

hohe Norden im Natur- und Menschenleben dargestellt.

Marvels Over Our Heads. from the Aerial World. with ... Illustrations.

Inseln des grossen Oceans im Natur und Völkerleben, etc.

Inseln des grossen Oceans im Natur und Völkerleben, etc.

Polar and Tropical Worlds

A description of man and nature in the polar and equatorial regions of the globe

Polar World

A popular description of man and nature in the Arctic and Antarctic regions of the globe

Leben des Meeres

Leben des Meeres

Untersuchungen über die Auriga-Dunkelwolke

Inaugural-Dissertation zur Erlangung des Doktorgrades genehmigt von der Mathematisch-Naturwissenschaftlichen Fakultät der Friedrich-Wilhelms-Universität zu Berlin

Bibliothek der Unterhaltung und des Wissens

Zweiter Band

Bibliothek der Unterhaltung und des Wissens

Jahrgang 1914

Inseln des großen Ozeans im Natur- und Völkerleben

Bibliothek der Unterhaltung und des Wissens

Jahrgang 1886

Tropical World

Inseln des großen Oceans im Natur- und Völkerleben

Inseln des grossen Ozeans im Natur- und Völkerleben

Leben des Meeres