SEVERAL shocks, supposed to be due to earthquakes, were felt in this country towards the end of last week. On January 26, at 4 a.m., a shock was felt at Dunblane strong enough to awaken sleepers, but not strong enough to affect the Milne seismograph at the Royal Observatory, Edinburgh. On January 28, at about 3.35 a.m., a tremor was felt in Glenfruin, a valley lying between the Gareloch and Loch Lomond. Early in the morning of January 26 there were three distinct shocks in the colliery district of Llanhilleth, in Monmouthshire, strong enough to make the miners leave their work. On January 20, shortly before 2 a.m., a sharp tremor was felt at Lennoxtown and Campsie, in Stirlingshire, again without affecting the Edinburgh seismograph. Of the four disturbances, the first two were apparently of seismic origin. Dunblane lies close to the district on the south side of the Ochil Hills, where so many earthquakes have resulted during the last twelve years from slips of the great fault which forms the southern boundary of the hills. The Glenfruin shock seems to be a successor of two other earthquakes in the same part of Scotland—the Dunoon earthquakes of September 18, 1904, and July 3, 1908. The Llanhilleth and Lennoxtown shocks bear a close resemblance to those which are often felt in colliery districts, and which are probably caused by small fault-slips precipitated by the working in the mines.