In 1801 Fulton attempted to destroy one of the English Channel Fleet off Boulogne by means of his drifting torpedoes, but owing to the ship altering her position at the moment of setting the torpedo adrift, the attack failed. In 1804–5, Fulton, who had now joined the British forces, attacked some of the French ships, but the torpedoes exploded harmlessly. From the death of Fulton to the commencement of the American Civil War, numerous inventive minds built or projected submarine craft of all shapes and sizes, but none of these ever participated in an actual engagement.

The exploits of the diving torpedo-boats known by the generic name of David, during the contest between the Federals and the Confederates, have been fully described in Chapter XII., and there is therefore no need to dwell further on this period in the history of under-water warfare. Since then no submarine boat has ever been taken into battle, although during the Spanish-American war Spain might have used the Peral, and the United States the Holland. In mimic warfare submarines have played their part, and although no very definite conclusions respecting their possible value in time of war can be drawn from their performances in peace manœuvres, still it may not be unprofitable briefly to note the various occasions on which some of the new submarine torpedo-boats have been used.

The first of these occasions was in September, 1900, during the manœuvres of the U.S. North Atlantic Squadron off Newport, Rhode Island, when the Holland made an attack upon the fleet by herself, without convoy, at a distance of seven miles out from the mouth of the harbour, and, with her own crew alone in her, torpedoed the flagship of the squadron, the Kearsarge, commanded by Capt. Wm. M. Folger. Lieut. Caldwell, who commanded the Holland on this occasion, wrote regarding the incident:—

“The Holland was not seen by any vessel of the blockading fleet or torpedo-boat, although she was within torpedo range of three of the former and several of the latter. I consider the attack was a success because the Holland could in all probability have torpedoed three blockading vessels without being discovered.”

It must be added that Admiral O’Neil, who has but a poor opinion of the value of submarines in war, has written as follows: “.... On September 25, 1900, during some manœuvres of the North Atlantic Fleet off Newport, Rhode Island, the Holland, on a very fine evening and under exceptionally favourable circumstances, steamed seven miles as a surface boat only outside Newport harbour, and like the torpedo-boat Porter, claims to have put the battleship Kearsarge out of action, which was not allowed by the umpire, as it was decided that the Kearsarge had already been put out of action by the torpedo-boat Dahlgren.”

Since this exploit of the Holland, no American submarine has taken part in manœuvres with the fleet.

French Submarines.

From 1898 onwards French under-water vessels have often engaged in mimic warfare, and many of the French papers have published glowing accounts of their wonderful performances, but one has to accept such statements with caution. In the following story of their doings care has been taken so far as possible to represent what really took place.

THE SUBMARINE IN ACTION.