es of Santa Caterina, northwest of San Marco, and east of
Vertoibizza, between Sober and the Goritz-Dornberg railway. After
heavy fighting the Austrians were repulsed nearly everywhere. However,
the Austrians succeeded in entering several portions of Italian
trenches, inflicted heavy losses upon the Italians and captured
fifteen officers and 650 men, ten machine guns, two mine throwers and
much other war material.

This slight success gained by the Austrians resulted in an intense
bombardment and violent counterattacks on the part of the Italian
forces during February 11, 1917. The latter entirely reestablished
their lines and completely repulsed the Austrians, inflicting upon
them serious losses and taking more than a hundred prisoners, among
whom were a few officers. In the Trentino there was moderate
artillery activity. Detachments of Austrian ski runners attempted to
approach the Italian lines on the Pasubio. They were repulsed and
dispersed by a few well-directed shots. In the upper valleys of the
But and Fella there were continuous artillery duels. The Italians
reached the station of Tarvia with their fire. In the Vedel zone,
after throwing hand grenades, an Austrian detachment attacked. It was
speedily repulsed in violent hand-to-hand fighting. The detachment was
pursued and decimated by Italian fire. The few survivors were
captured.

On the Trentino front the activity of the artillery increased again on
February 12, 1917, especially in the Tonale Pass, on the western
slopes of Monte Zugna, in the Lagarina Valley, in the upper
Travignola, and in the Cordevole Valley. In the Arsa Valley and on the
upper Coalba Torrent, on the right bank of the Brenta, Austrian raids
were repulsed. In the upper But Valley the artillery was active.
Italian batteries set fire to some Austrian barracks behind Val
Piccolo.

The following day, February 13, 1917, Italian artillery fire again
reached and hit the station at Tarvia. In the zone north of Sober, in
the Goritz district, an Austrian attack was repulsed. In the Wippach
Valley lively artillery engagements continued. The Italians fired
numerous gas grenades. Italian attacks from the district of St. Peter
were repulsed. Near Tonale Pass Austrian troops surprised an Italian
point of support and took twenty-three Italian prisoners.

Similar events of minor local importance occurred during the next few
days. Thus, on February 16, 1917, the Adige Valley was the scene of
considera