Note 94 — VII THE INVESTMENT OF BOSTON
Reading edition
The search-light system, recognized as a vital part of harbor defense by the Endicott Board on harbor defense (appointed in 1885) has grown steadily in importance with the steady increase in ship armament and ship speed. A thoroughly efficient installation of search-lights for modern harbors demands as much scientific calculation and interlocation as do the gun-systems. If the search-lights cannot infallibly find any vessel that may approach within range, the guns of the fortification are useless.