Donald Dale Jackson Libri

Time-Life Book series entitled Planet Earth; this volume featuring Underground Worlds. Explorers of a stygian realm; the birth of speleology; masters of making do; the lure of the abyss; Europe's premier show cave; a profusion of water-worked wonders; a caver's inventive gear; the hardy denizens of darkness; and a new continent of Karst.

Presents a history with pictures, of the early days of air mail.

An account of ballooning from the late 18th century to the present.

Text and photographs describe early 20th century exploration of the polar regions and other unexplored regions.

Integriert in die Sammlung Die wilden Regionen der Welt .

Höhle/Abri - Popularisierung/Belletristik - Geologie.