SMEATON'S REPROOF OF GAMING.

Smeaton, the engineer, was on intimate terms of acquaintance with the Duke and Duchess of Queensbury, and often spent a leisure hour in the evening at their house. On a few occasions, he played at cards with them, and on one such evening, he effected the abolition of that inconsiderate, indiscriminate play amongst people of superior rank or fortune, which compels every one to join, and at their own stake too. Smeaton detested cards, and his attention never following the game he played like a boy. The game was Pope Joan; and the general run of it was high; and the stake in Pope had accumulated to a serious sum. It was Smeaton's turn by the deal to double it; when, regardless of his cards, he busily made minutes on a slip of paper, and put it on the board. The Duchess eagerly inquired what it was; and he as coolly replied, "Your grace will recollect the field in which my house stands may be about five acres, three roods, and seven perches; which, at thirty years' purchase, will be just my stake; and if your grace will make a duke of me, I presume the winner will not dislike my mortgage." The joke and the lesson had alike their weight; and the party never after played but for the merest trifle.


INVENTION OF GUN-COTTON.

Cotton, having largely contributed to our national prosperity in times of peace, promised, not long since, to play a very important part in the strategies of war; and this by its use in place of gunpowder; wherefore the new substance was termed "Gun-cotton."

The merit of the invention is believed to be due to Professor Schonbein, of Basle. In 1840, the novelty was first announced as an explosive compound, possessing many apparent advantages over gunpowder. It was described as a cotton prepared by a secret process; which, on the application of a spark, became at once converted into a gaseous state. In an experiment performed in the laboratory of Professor Schonbein, a certain weight of gunpowder, when fired, filled the apartment with smoke; whilst an equal weight of gun-cotton exploded without producing any smoke, leaving only a few atoms of carbonaceous matter behind. Cannon-balls and shells were then experimentally projected by this prepared cotton, with nearly double the projectile force of gunpowder.

Professor Schonbein made an interesting experiment upon the wall of an old castle: it had been calculated that from three to four pounds of gunpowder would be requisite to destroy this wall, and a hole capable of containing that quantity was prepared. In this aperture were put four ounces of the prepared cotton, which, when fired, blew the massive wall to pieces.

Again, the sixteenth part of an ounce of the prepared cotton, placed in a gun, carried a ball with such force, that it perforated two planks at the distance of twenty-eight paces; and, at another time, with the same charge, drove a bullet into a wall, to the depth of three inches and three-quarters.

Professor Schonbein attended the meeting of the British Association for the Advancement of Science, held at Southampton, in 1846, when the operation of this new power was explained and experimented with. Subsequently, the professor attended at Osborne House, to exhibit the properties of his gun-cotton to Prince Albert, when Schonbein offered to explode a portion on the hand of Colonel B——: who would, however, have nothing to do with the novel power. Prince Albert himself submitted to the test, and off went the cotton, without smoke, stain, or burning of the skin. Thus encouraged, the colonel took his turn; but whether the material was changed or not for the coarser preparation, it gave him such a singeing that he leaped up with a cry of pain. A hearty laugh was all the commiseration he received. After this, Professor Schonbein loaded a fowling-piece with cotton in the place of powder, and the prince fired both ball and shot from it with the usual effect, and perfect impunity.