As his pen stopped, a chill blast passed through the room, making the lamplight waver, as if it were about to be extinguished. Mr Hadleigh, surprised, raised his head slowly, and slowly looked round. The window behind him was open, and before it stood a tall, rough-looking, muscular man. Mr Hadleigh’s sallow cheeks became more sallow, his eyes started, and his lips trembled slightly. He recovered himself instantly, and rising calmly from his seat, and at the same moment lifting the shade from the lamp, his eyes remaining fixed all the time on the intruder, burglar, intending murderer, perhaps. When the light was uncovered, the man drew back a pace with a kind of growl of surprise. Mr Hadleigh retained perfect self-possession; but he was not much relieved from apprehension by recognising in his midnight visitor the leader of the agricultural agitators who had on various occasions openly declared antagonism to the master of Ringsford. (_To be continued._) A LITTLE KNOWLEDGE _NOT_ DANGEROUS. A remarkable circumstance recently occurred which brings out strongly the fact that scientific teaching in medical and surgical matters has made giant strides of late. On the 8th of July an accident happened to a ‘marker’ at the ranges of the Civil Service Rifle regiment at Wimbledon when marking at the five hundred yards’ range. According to the report, a rifle-bullet seems ‘to have bounded off the corner of the target and to have entered the marker’s breast.’ Fortunately, the great annual meeting of the National Rifle Association was to commence in a day or two, and the Field Hospital prepared for the meeting was being got ready under the charge of Sergeant Monaghan and Corporal Melville, both of the Army Hospital Corps. Thither the wounded man was immediately carried; but there was no surgeon present or anywhere near. Seeing, however, the serious nature of the case, the two soldiers, without a moment’s hesitation, took steps to extract the bullet, which had entered the right breast just under the collar-bone. Having carefully examined his patient and found the exact locality of the bullet, Sergeant Monaghan, with the assistance of the corporal, made an incision in the back and was enabled at once to extract the bullet from the spot where it had lodged, just opposite to the point of entry in the breast. The injured man, a member of the corps of Commissionaires, expressed himself much gratified with the prompt attention he had received, as well as with the skilful operation by which, without a moment’s loss of time, the important act of removing the bullet had been accomplished. Too much praise cannot be given to the two soldiers, who by their ready and intelligent action, saved their patient not only from prolonged suffering, but perhaps even from death itself.