From _Poland_ there is a singular account of a forest on fire. Near Cracow, adjoining the line of railway, there is a large peat ground, part of which runs below an immense forest. Some sparks from a locomotive engine were blown in that direction, and fell on the peat. A few days after, the ground in the forest was found to be very warm, and some rumbling and crackling noises were heard. Several large trees fell as if cut down by an ax, and the leaves of others withered. As it was naturally considered that a subterranean fire must be burning under the forest, the officers charged with the inspection of it caused large trenches to be cut. This conjecture turned out to be well-founded, for the fire soon afterward burst forth, and still continued its ravages. The forest presented the appearance of a vast sea of flame, which was every day extending. The country round to the extent of six leagues was perfectly illuminated, and it has been found impossible to stop the progress of the fire. The long expected Constitution for Galicia has at length appeared. That Crown land will have three districts, Cracow, Lemberg, and Stanislawow--each with a separate administration. In Cracow the specific Polish, and in Stanislawow the Ruthennian element is prevalent. Lemberg, the capital of Galicia, is the seat of the Provincial Government. In the Lemberg district the two branches of the same race (the Sclavonic) are mixed. The Constitution for the Bukowina has also been published. This remote Crown land is divided into six districts or captaincies, which are under the immediate control of the Stadtholder of the province, who has still to be appointed. Count Goluchowski had been sworn in as Stadtholder of Galicia. Letters from Ravenna, in the _Genoa Gazette_, give appalling accounts of the progress of brigandage in the Roman states. Two persons, considered as spies by the bandits, had been decapitated by them in the vicinity of the above-mentioned town, and their heads placed on poles at a cross-road. The diligence of Imola has lately been stopped and robbed of 1000 scudi (5500f.) belonging to the Pope. At Lugo, three individuals carried off 11,000f. from a bank, and passed triumphantly through the town with their booty, without any one daring to stop them. An extensive conspiracy has recently been discovered at Teheran. The most influential members of the clergy were at the head of it, and its object was to overthrow the present Shah, to replace him by a descendant of Ali, and to drive all the Turks out of Persia. Numerous arrests have been made at Teheran, and in the principal towns. The greater number of those arrested belong to the body of Ulemas. LETTERS, SCIENCE, ART, PUBLIC MEN, ETC. UNITED STATES.