_Note_.--All our readers may not be aware that the remains of Two Literary Colleges still exist in London: _Gresham College_ and _Sion College_--or we should say of one of them. The first was founded and endowed by that excellent citizen Sir Thomas Gresham. He was much opposed by the university of Cambridge, which endeavoured to prevent the establishment of a rival institution. (This was two centuries and a half ago.) He devised by will, his house in Bishopsgate street, to be converted into habitations and lecture-rooms for seven professors or lecturers on seven liberal sciences, who were to receive a salary out of the revenues of the Royal Exchange. Gresham College was subsequently converted into the modern general excise-office; but _the places_ are still continued, with a double salary for the loss of apartments, and the lectures are delivered gratuitously twice a day in a small room in the Royal Exchange, during term-time. The will of the founder has not, however, been actually carried into execution. As we hate "solemn farce" and "ignorance in stilts," we hope "scrutiny will not be stone blind" in this matter. A more useful man than Sir Thomas Gresham is not to be found in British biography, and it is painful to see his good intentions frustrated. _Sion College_ is situated near London Wall, to the south of Fore-street. It was founded in 1623 by the rector of St. Dunstan's in the west, for the London clergy. The whole body of rectors and vicars within the city are fellows of this college, and all the clergy in and near the metropolis may have free access to its extensive and valuable library. * * * * * SUPERSTITIONS ON THE WEATHER. _From Sir H. Davy's Salmonia; or, Days of Fly-fishing. (In Conversations.)_ POIETES, a Tyro in Fly-fishing.--PHYSICUS, an uninitiated Angler, fond of inquiries in natural history, &c.--HALIEUS, an accomplished fly-fisher.--ORNITHER, a sporting gentleman. _Poietes_. I hope we shall have another good day to-morrow, for the clouds are red in the west. _Physicus_. I have no doubt of it, for the red has a tint of purple. _Halieus_. Do you know why this tint portends fine weather? _Phys_. The air, when dry, I believe, refracts more red, or heat-making rays; and as dry air is not perfectly transparent, they are again reflected in the horizon. I have generally observed a coppery or yellow sun-set to foretell rain; but, as an indication of wet weather approaching, nothing is more certain than a halo round the moon, which is produced by the precipitated water; and the larger the circle, the nearer the clouds, and consequently the more ready to fall. _Hal_. I have often observed that the old proverb is correct-- A rainbow in the morning is the shepherd's warning: A rainbow at night is the shepherd's delight. Can you explain this omen?