The Sciences
Submarine for Hydrographic Work
Method of Discovering Dangerous Pinnacles in Rocky Bottoms
Stories by Simon Lake
Tech
Submarines That are Strictly Invisible
A Type That Can Pass Through a Mine Field and Attack a Blockaded Fleet
The Sciences
The Development of Submarine Boats—II
From Bushnell to Holland and Lake
The Sciences
The Development of Submarine Boats
From Bushnell to Holland and Lake
The Sciences
