In Louisiana indications of public sentiment are to be found in the position of the two United States Senators. Mr. Downs, in his public addresses, takes the ground that the South might as well secede because Illinois and Indiana are free States as because California is. He admits that California is a large State, but he says she is not half so large as Texas, a slave State, brought into the Union five years ago. Mr. Soulé, the other Senator, having expressed no opinion upon the subject, was addressed in a friendly note of inquiry first by Hon. C.N. Stanton, asking whether he was in favor of a dissolution of the Union, of the establishment of a Southern Confederacy, or of the secession of Louisiana, because of the late action of Congress. Mr. Soulé, in his reply, complains bitterly of the "vile abuse" heaped upon him, charges his correspondent with seeking his political destruction, and refers him to his speeches in the Senate for his sentiments upon these questions. A large number of the members of his own party then addressed to Mr. Soulé the same inquiries, saying that they did it from no feeling of unkindness, but merely to have a fair and proper comprehension of his opinions upon a most important public question. Mr. S., under date of Oct. 30, replies, refusing to answer their inquiries, and saying that their only object was to divide and distract the Democratic party. Senator Downs, in reply to the same questions, has given a full and explicit answer in the negative: he is not in favor of disunion or secession.

A letter written during the last session of Congress, dated January 7, 1850, from the Members of Congress from Louisiana, to the Governor of that State, has recently been published. It calls his attention to the constant agitation of the subject of slavery at the North, and to the fact that the legislature of every Northern State had passed resolutions deemed aggressive by the South, and urging the Governor to recommend the Legislature of Louisiana to join the other Southern States in resisting this action. The opinion is expressed that "decisive action on the part of the Southern States at the present crisis, is not only not dangerous to the Union, but that it is the best, many think, the only way of saving it."

Among the political events of the month is the publication of a correspondence between Hon. Isaac Hill, long a leader of the Democratic party in New Hampshire, and Mr. Webster, in regard to the efforts of the latter to preserve the peace and harmony of the Union by allaying agitation on the subject of slavery. Mr. Hill, under date of April 17, wrote to Mr. Webster expressing his growing alarm at the progress of ill-feeling between the different sections of the country, and his conviction that "all that is of value in the sound discrimination and good sense of the American people will declare in favor of Mr. Webster's great speech in the Senate upon that subject. Its author," he adds, "may stand upon that alone, and he will best stand by disregarding any and every imputation of alleged inconsistency and discrepancy of opinion and practice, in a public career of nearly half a century." Mr. Webster, in acknowledging the letter, speaks of it as "an extraordinary and gratifying incident in his life," coming as it did from one who had long "belonged to an opposite political party, espoused opposite measures, and supported for high office men of very different political opinions." They had not differed, however, in their devotion to the Union; and now, that its harmony is threatened, it was gratifying to see that both concurred in the measures necessary for its preservation. His effort, he says, had been and would be to cause the billows of useless and dangerous controversy to sleep and be still. He was ready to meet all the consequences which are likely to follow the attempt to moderate public feeling in highly excited times, and he cheerfully left the speech to which Mr. Hill had alluded, "with the principles and sentiments which it avows, to the judgment of posterity."

A public dinner was given to the Hon. John M. Clayton on the 16th of November, by the Whigs of Delaware, at Wilmington, at which Mr. C. made a long and eloquent speech in vindication of the policy pursued by the late President Taylor and his Administration. He paid a very high tribute to the personal character, moral firmness, patriotism, and sagacity of the late President, and vindicated his course from the objections which have been urged against it. He expressed full confidence in the perpetuity of the Union, and ridiculed the apprehensions that have been so widely entertained of its dissolution. A large number of guests were present, and letters were read from many distinguished gentlemen who had been invited but were unable to attend. Preferences were expressed at the meeting for Gen. Scott as a candidate for the Presidency in 1852.

Colonel Richard M. Johnson, Vice President of the United States for four years from 1836, died at Frankfort, Ky., on the 19th of November, aged 70. He has been a member of Congress, and Senator of the United States from Kentucky, and acquired distinction under General Harrison in the Indian war of 1812. At the time of his death he was a member of the Kentucky Legislature.

GREAT BRITAIN.

The event of the month which has excited most interest, has been the establishment by the Pope of Roman Catholic jurisdiction in England. The Pope has issued an Apostolic Letter, dated September 24th, which begins by reciting the steps taken hitherto for the promotion of the Catholic faith in England. Having before his eyes the efforts made by his predecessors, and desirous of imitating their zeal, and carrying forward to completion the work which they commenced, and considering that every day the obstacles are falling off which stood in the way of the extension of the Catholic religion, Pius IX. believes that the time has come when the form of government should be resumed in England such as it exists in other nations. He thinks it no longer necessary that England should be governed by Vicars Apostolic, but that she should be furnished with the ordinary episcopal form of government. Being confirmed in these thoughts by the desires expressed by the Vicars Apostolic, the clergy and laity, and the great body of English Catholics, and, also, by the advice of the Cardinals forming the Congregation for Propagating the Faith, the Pope decrees the re-establishment in England of a hierarchy of bishops, deriving their titles from their own Sees, which he constitutes in the various Apostolic districts. He then proceeds to erect England into one archiepiscopal province of the Romish church, and divides that province into thirteen bishoprics.

The promulgation of this letter created throughout England a feeling of angry surprise, and nearly the whole of London has teemed with the most emphatic and earnest condemnation of the measure. In order somewhat to mitigate the alarm of startled Protestantism, Dr. Ullathorne, an eminent Catholic divine, has published a letter to show that the act is solely between the Pope and his spiritual subjects, who have been recognized as such by the English Emancipation Act, and that it does not in the slightest degree interfere with the laws of England, in all temporal matters. He shows that the jurisdiction which the Pope has asserted in England, is nothing more than has been exercised by every communion in the land, and that nothing can be more unfair than to confound this measure, which is really one of liberality to the Catholics of England, with ideas of aggression on the English government and people. In 1688, he says, England was divided into four vicariates. In 1840, the four were again divided into eight; and, in 1850, they are again divided and changed into thirteen. This has been done in consequence of efforts begun by the Catholics of England, in 1846, and continued until the present time. By changing the Vicars Apostolic into Bishops in ordinary, the Pope has given up the exercise of a portion of his power, and transferred it to the bishops. This letter, with other papers of a similar tenor, has somewhat modified the feeling of indignation with which the Pope's proceeding was at first received, and attention has been turned to the only fact of real importance connected with the matter, namely, the rapid and steady increase of the Roman Catholics, by conversions from the English Established Church. The Daily News, in a paper written with marked ability, charges this increase upon the secret Catholicism of many of the younger clergy, encouraged by ecclesiastical superiors, upon the negligent administration of other clergymen, and upon the exclusive character of the Universities. Very urgent demands are made by the press, and by the clergy of the Established Church, for the interference of the Government against the Pope's invasion of the rights of England; but no indications have yet been given of any intention on the part of ministers to take any action upon the subject.

A good deal of attention has been attracted to a speech made by Lord Stanley, the leader of the Protectionist party in England, at a public dinner, Oct. 4th, in which he urged the necessity, on the part of the agricultural interests of the kingdom, of adapting themselves to the free-trade policy, instead of laboring in vain for its repeal. The speech has been very widely regarded as an abandonment of the protective policy by its leading champion, and it is, of course, considered as a matter of marked importance with reference to the future policy of Great Britain upon this subject. The Marquis of Granby, on the other hand, at the annual meeting of the Waltham Agricultural Society, held on the 19th of October, again urged the necessity of returning to the old system of protection, and exhorted reliance on a future Parliament for its accomplishment. The subject of agriculture is attracting an unusual degree of attention, and the various issues connected with it, form a standard topic of discussion in the leading journals.

The Tenant Right question continues to be agitated with great earnestness and ability in Ireland. A deputation from the Ulster Tenant Right Provincial Committee waited on the Earl of Clarendon during his visit to Belfast to present an address. The earl declined to receive them, but wrote a letter, dated Sept. 18, in reply to one inclosing a copy of the address. He expressed great satisfaction at the prevalence of order and at the evidence of agricultural prosperity, and assured them of the wish of the government to settle the rights of tenants on a just and satisfactory basis. A great Tenant Right meeting was held at Meath, October 10th, at which some 15,000 persons are said to have been present.