he amount of damage she inflicted
on allied trade amounted to $1,250,000.

Thus at the end of March, 1915, only the _Karlsruhe_ and _Kronprinz
Wilhelm_, of the eleven German warships that were detached from the
main German fleet in the North Sea at the outbreak of the war, and of
the few ships which slipped out of various ports as converted
auxiliary cruisers, were still at large on the high seas.

Naval activity in the northern waters of Europe did not abate. The
British admiralty on March 25, 1915, had announced that the German
submarine _U-29_, one of the most improved craft of the type in use,
had been sunk. This loss was admitted by the German admiralty on April
7, 1915. It was a serious loss to the German navy, for its commander
was Otto von Weddigen, he who, in the _U-9_, had sent the _Cressy_,
_Aboukir_ and _Hogue_ to the bottom in September, 1914.

The naval warfare at the Dardanelles proceeded in the same desultory
fashion. A Turkish torpedo boat caught up with the British transport
_Manitou_, and opened fire on her, killing some twenty of the soldiers
on board.

In answer to calls for help from the _Manitou_ the British cruiser
_Minerva_ and some torpedo boats went to the scene and attacked the
Turkish craft on April 7, 1915, driving it ashore off Chios and
destroyed it as it lay beached. But during April, 1915, it seemed as
though there would be another pitched fight between British and German
warships in the North Sea. On April 23, 1915, the German admiralty
announced that "the German High Sea Fleet has recently cruised
repeatedly in the North Sea, advancing into English waters without
meeting the sea forces of Great Britain." The British admiralty had
undoubtedly been aware of this activity on the part of their enemy,
but for reasons of their own did not choose to send British ships to
meet the German fleet, and the expected battle did not take place.

France, on April 26, 1915, was to sustain a severe loss to her navy;
she had up to this time not lost as many ships as her ally, England,
or her enemy, Germany, but her navy was so much smaller than either of
them that the sinking of the _Leon Gambetta_ on that date was a matter
of weight. The _Gambetta_ was an armored cruiser, built in 1904, and
carrying four 7.6-inch guns, sixteen 6.4-inch guns and a number of
smaller caliber. She had a speed of twenty-three knots. While doing
patrol duty in the Strait of Otranto she was made the victim of the
Austri