A casual circumstance, it is said, discovered that excellent febrifuge, the Jesuit's Bark. An Indian in a delirious fever was left by his companions, as incurable, by the side of a river, to quench his burning thirst while dying. He naturally drank copious draughts of the water, which, having long imbibed the virtues of the bark, that floated abundantly on the stream, quickly dispersed the fever of the Indian. He returned to his friends, and explained the nature of his remedy; and the sick crowded about the margin of the holy stream (as they imagined it) till they had quite exhausted its virtues. The sages of the tribe found out at length, however, whence the efficacy of the stream arose. The Indians discovered it first, in 1640, to the lady of a Viceroy of Peru, who by its use recovered of a dangerous fever; and in 1643 it was known at Rome. ------------------ NICE ROBBERY. M. Bachalier, a French florist, kept some beautiful species of the anemone to himself, which he had procured from the East Indies; and he succeeded in withholding them, for ten years, from all who wished to possess them likewise. A counsellor of the parliament, however, one day paid him a visit, while the anemones were in seed, and in walking with him round the garden contrived to let his gown fall upon them. By this means he swept off a good number of the seeds; and his servant, who had been apprised of the scheme, dexterously wrapt up the gown and secured them. Any one must have been a sour moralist who should have considered this to be a breach of the eighth commandment. ------------------ FEMALE MATHEMATICIAN. In the year 1736, the French Academy of Sciences proposed, as a subject for a prize, "the Propagation of Heat," when the Marchioness of Châtelet entered the list of competitors. Her work was not only an elegant account of all the properties of heat at that time known to natural philosophers, but it was also remarkable for various proposals for experiments; one, among others, which was afterwards followed up by Herschel, and from which he derived one of the chief gems in his brilliant scientific crown. ------------------ FOURIER'S INDEPENDENCE.