In the exercise of her miraculous powers, certain preliminaries were indispensable. She was obliged to observe a rigid fast; indigestion, or the most trifling derangement of the stomach, suspending the marvellous powers of her visual organs. The men of science of the day were of course confounded by such prodigies. But instead of questioning the woman, they consulted the works of their predecessors; not forgetting the inevitable Aristotle. By dint of much research, they found a letter from Huygens asserting that there was a prisoner of war at Antwerp, who could see through stuffs of the thickest texture provided they were not red. The wonderful man was cited in confirmation of the wonderful woman, and _vice versa_. CHARACTER INDICATED BY THE EARS. According to Aristotle, large ears are indicative of imbecility; while small ones announce madness. Ears which are flat, point out the rustic and brutal man. Those of the fairest promise, are firm and of middling size. Happy the man who boasts of square ears; a sure indication of sublimity of soul and purity of life. Such, according to Suetonius, were the ears of the Emperor Augustus. GROANING BOARDS. Groaning boards were the wonder in London in 1682. An elm plank was exhibited to the king, which, being touched by a hot iron, invariably produced a sound resembling deep groans. At the Bowman Tavern, in Drury Lane, the mantel-piece did the same so well that it was supposed to be part of the same elm-tree; and the dresser at the Queen's Arm Tavern, St. Martin le Grand, was found to possess the same quality. Strange times when such things were deemed wonderful; even to meriting exhibition before the monarch. ANCIENT PLOUGHING AND THRESHING. The ancient plough was light, the draught comparatively easy; but then the very lightness required that the ploughman should lean upon it with his whole weight, or else it would glide over the soil without making a single furrow. "Unless," said Pliny, "the ploughman stoop forward, to press down the plough, as well as to conduct it, truly it will turn aside." [Illustration: Ancient Mode of Ploughing.] Oxen were anciently employed in threshing corn, and the same custom is still retained in Egypt and the east. This operation is effected by trampling upon the sheaves, and by dragging a clumsy machine, furnished with three rollers that turn on their axles. A wooden chair is attached to the machine, and on this a driver seats himself, urging his oxen backwards and forwards among the sheaves, which have previously been thrown into a heap of about eight feet wide and two in height. The grain thus beaten out, is collected in an open place, and shaken against the wind by an attendant, with a small shovel, or, as it is termed, a winnowing fan, which disperses the chaff and leaves the grain uninjured:--