Expert opinion is divided in authoritative circles in England as to the cause of the disaster; but more than 400 mines have been swept up along the Irish and Scotch coasts by the English mine sweepers.
While upon this subject, I ought to narrate that the study of this topic has convinced me that the Germans have a long task if they hope within a reasonable number of months to reduce by submarine torpedo practice the efficiency of the English navy to a basis that will warrant German warships coming forth to battle.
Every battleship is protected by four destroyers. Submarines, when detected, are the most easily destroyed craft. They have no protection against even a well-directed rifle bullet. Their whole protection is that of invisibility. Their plan of operation is to reach a position during the night, whence in the early morning they can single out an unprotected warship or cruiser not in motion, and launch against her side a well-directed torpedo, before being discovered.