At Grochow, the Russians, under the command of Count Pahlen, had been compelled to retreat before the Poles, when, by the concentration of the artillery force under the command of Gortschakoff, the battle was turned in favor of the Russians. At Ostrolenka, also, he greatly distinguished himself. The Poles, after an obstinate resistance, were compelled to abandon the place. In September, 1831, the capital, Warsaw, capitulated. In 1843 he was promoted to the rank of General of Artillery. In 1846 he was appointed Military Governor of Warsaw. He took an important part in the Hungarian war of 1849. As soon as the occupation of the Danubian provinces was determined upon, the Prince was appointed to the chief command of the Imperial forces. When he entered Wallachia, he published a proclamation, to the effect that the Czar, his master, had no design of conquest, and that the independence of the inhabitants would, in every way, be protected. This promise was not fulfilled. Shortly after this, he issued the celebrated appeal to the fanaticism of the Russians, ending with the words--“Mort aux Pagans” (death to the infidels). As has been stated, the Prince has gradually attained his present high rank. He is now Aide-de-Camp General, General of Artillery, and Chef d’Etat Major of the active army, and privileged to take part in the deliberations of the Councils of the Empire. He is also Military Governor of Warsaw, and the chief member of the Council of Administration of the Kingdom of Poland. The diplomatic achievements of the Prince are numerous, but they are more characteristic than great. He is said to be more of a bully than a diplomatist, doubles his fists too often to wear the “white glove” well--he being one of the most petulant and factious of mankind, and at the same time one of the most obstinate and overbearing. THE FALL OF SEBASTOPOL. It is nearly a year since we were first startled by the announcement that Sebastopol had fallen. But that news proved false, and ever since the public ear has been opened to catch the announcement of the news of the great feat which two of the mightiest nations of the Old World had combined their utmost power to accomplish. It has come at last; superior power and skill have carried the day, as we have never doubted they would, and Sebastopol has fallen. The contest on which the eyes of Europe have been turned so long is nearly decided--the event on which the hopes of so many mighty empires depended is all but determined. And one more great act of carnage has been added to the tremendous, but glorious tragedy, of which the whole world, from the most civilized nations down to the most barbarous hordes of the East, has been the anxious and excited audience.