Simon Lake, The Submarine in War and Peace…
“ While the torpedo-boat destroyer, the submarine's logical pursuer to-day, is battling with wind and wave, jarring well nigh her sides out, and hunting over the tumbling seas for elusive periscopes, the submarine can lie in ambush upon the ocean-bed if the water be not too deep, or at rest at any desired depth, held in suspension between the surface and the bottom by her anchors, thus conserving her energies so that when she does rise for a peep through her observing instrument she can strike more certainly with all of the sinister force of her chosen weapon of attack. ”
