Fleurus is a village in France, in the department of the Sombre and Meuse, where the Austrians and the French fought a battle in the year 1794, in which the former were defeated. This victory is ascribed to the information obtained in consequence of reconnoitering the army of the enemy by the elevation of a balloon. The balloon employed on this occasion was called the _Entreprenent_; and it was under the direction of M. Coutel, the captain of the aeronauts at Meudon, accompanied by an adjutant and a general. He ascended twice in the same day, to the height of 220 fathoms, for the purpose of observing the position and manoeuvres of the enemy. He continued each time four hours in the air, and corresponded with General Jourdan, who commanded the French army, by means of pre-concerted signals. The enterprise was discovered by the enemy; and a battery opened its fire against the ascending aeronauts, but they soon gained an elevation which was beyond the reach of their fire. This balloon was prepared under the direction of the Aerostatic Institute, for the use of the army of the north; as were also another, called _Céleste_, for the army of the Sombre and Meuse; and the _Hercûle_ and _Intrepide_, for the army of the Rhine and Moselle. Another, thirty feet in circumference, and weighing 160 lbs., was destined for the army of Italy. A new machine, invented by M. Coutel, the director of the Aerostatic Institute, was designed to aid the aeronauts in communicating intelligence, and denominated the _Aerostatic Telegraph_. P.T.W. _Muscular Strength_.--It is asserted by travellers, that a Turkish porter will run along carrying a weight of 600 lbs. Milo, of Crotona, is said to have lifted an ox, weighing upwards of 1,000 Ibs. Haller mentions that he saw an instance of a man, whose finger being caught in a chain at the bottom of a mine, by keeping it forcibly bent, supported by that means the weight of his whole body, 150 lbs., till he was drawn up to the surface, a height of 600 feet. Augustus II., king of Poland, could with his fingers roll up a silver dish like a sheet of paper, and twist the strongest horse-shoe asunder. An account is given in the _Philosophical Transactions_, No. 310, of a lion who left the impression of his teeth upon a solid piece of iron. The most prodigious power of the muscles is exhibited by fish:--A whale moves with a velocity through the dense medium of water that would carry him, if he continued at the same rate, round the world in little more than a fortnight; and a sword-fish has been known to strike his weapon quite through the oak plank of a ship. W.G.C.