The most alarming feature of the situation to reflecting men in the North was that, so far as known, all the members of Mr. Buchanan's Cabinet approved the destructive doctrines of the message. But as the position of the President was subjected to examination and criticism by the Northern press, uneasiness was manifested in Administration circles. It was seen that if the course foreshadowed by Mr. Buchanan should be followed, the authority of the Union would be compelled to retreat before the usurpations of seceding States, and that a powerful government might be quietly overthrown, without striking one blow of resistance, or uttering one word of protest. General Cass was the first of the Cabinet to feel the pressure of loyalty from the North. The venerable Secretary of State, whose whole life had been one of patriotic devotion to his country, suddenly realized that he was in a false position. When it became known that the President would not insist upon the collection of the national revenue in South Carolina, or upon the strengthening of the United-States forts in the harbor of Charleston, General Cass concluded that justice to his own reputation required him to separate from the Administration. He resigned on the twelfth of December,--nine days after Mr. Buchanan had sent his fatal message to Congress. CHARACTER AND CONDUCT OF JUDGE BLACK. Judge Black, who had from the beginning of the Administration been Mr. Buchanan's chief adviser, now became so by rank as the successor of General Cass in the State Department. He was a man of remarkable character. He was endowed by nature with a strong understanding and a strong will. In the profession of the law he had attained great eminence. His learning had been illustrated by a prolonged service on the bench before the age at which men, even of exceptional success at the bar, usually attract public observation. He had added to his professional studies, which were laborious and conscientious, a wide acquaintance with our literature, and had found in its walks a delight which is yielded to few. In history, biography, criticism, romance, he had absorbed every thing in our language worthy of attention. Shakspeare, Milton, indeed all the English poets, were his familiar companions. There was not a disputed passage or an obscure reading in any one of the great plays upon which he could not off-hand quote the best renderings, and throw original light from his own illumined mind. Upon theology he had apparently bestowed years of investigation and reflection. A sincere Christian, he had been a devout and constant student of the Bible, and could quote its passages and apply its teachings with singular readiness and felicity. To this generous store of knowledge he added fluency of speech, both in public address and private communication, and a style of writing which was at once unique, powerful, and attractive. He had attained unto every