there were traces, stains on the lining of the pocket!

“So my reason has not quite deserted me, so I still have some sense and memory, since I guessed it of myself,” he thought triumphantly, with a deep sigh of relief; “it’s simply the weakness of fever, a moment’s delirium,” and he tore the whole lining out of the left pocket of his trousers. At that instant the sunlight fell on his left boot; on the sock which poked out from the boot, he fancied there were traces! He flung off his boots; “traces indeed! The tip of the sock was soaked with blood;” he must have unwarily stepped into that pool... “But what am I to do with this now? Where am I to put the sock and rags and pocket?”

He gathered them all up in his hands and stood in the middle of the room.