Concept
Underwater exploration
Images
Catalogue

- Pictures
- Online
Two balloons in the air over boats in the water to which lines are attached from an anchoring system on the sea bed. Coloured wood engraving.
Reference: 36655i- Books
- Online
Fathoming the ocean : the discovery and exploration of the deep sea / Helen M. Rozwadowski.
Rozwadowski, Helen MDate: 2008, ©2005
