Austria And Hungary.

The Austrian Emperor issued on New Year's day three decrees, formally annulling the Constitution of March 4, 1849, and promulgating certain fundamental principles of the future organic institutions of the Austrian Empire. The first decree declares that, after thorough examination, the Constitution has been found neither to agree with the situation of the empire, nor to be capable of full execution. It is therefore annulled, but the equality of all subjects before the law, and the abolition of peasant service and bondage are expressly confirmed. The second decree annuls the specific political rights conferred upon the various provinces. The third decree abolishes open courts, and trials by jury, requires all town elections to be confirmed by the Government, forbids publication of governmental proceedings, and destroys every vestige of the Parliamentary system. These measures make the despotism of Austria much more absolute and severe than it was before 1848.—Proposals are in active preparation for a new Austrian loan. In consequence of this, Baron Krauss, the Minister of Finance, resigned, and is succeeded by M. von Baumgartner.—The members of the London Missionary and Bible Society, who have for many years resided at Pesth and other Hungarian towns, have been ordered out of the Austrian states.—In Prussia strenuous efforts are made by the reactionary party to secure the abolition of the Chambers and the restoration of absolutism.—It is said that the Austrian Government has received from Earl Granville, in reply to its demand for the suppression of revolutionary intrigues carried on in England against the Continental Governments, assurances that every thing should be done to meet its wishes so far as they were not incompatible with the laws and customs of England.—The Austrian Minister of the Interior has directed a committee to make a draft of new laws for Hungary on the basis of the decrees of the 1st of January.

Editor's Table.

The seventh enumeration of the inhabitants of the United States, taken on the 1st of June, 1850, exhibits results which every citizen of the country may contemplate with gratification and pride. The Report of the Superintendent of the Census-office to the Secretary of the Interior, laid before Congress, in December, 1851, gives a full abstract of the returns, from which we select the most interesting portions; adding other statements showing the progress of this country in population and resources.

Since the census of 1840, there have been added to the territory of the Republic, by annexation, conquest, and purchase, 824,969 square miles; and our title to a region covering 341,463 square miles, which before properly belonged to us, but was claimed and partially occupied by a foreign power, has been established by negotiation, and has been brought within our acknowledged boundaries. By these means the area of the United States has been extended during the past ten years, from 2,055,163 to 3,221,595 square miles, without including the great lakes which lie upon our northern border, or the bays which indent our Atlantic and Pacific shores; all which territory has come within the scope of the Seventh Census.

In endeavoring to ascertain the progress of our population since 1840, it will be proper to deduct from the aggregate number of inhabitants shown by the present census, the population of Texas in 1840, and the number embraced within the limits of California and the new territories, at the time of their acquisition. From the best information which has been obtained at the Census-office, it is believed that Texas contained, in 1840, 75,000 inhabitants; and that when California, New Mexico, and Oregon came into our possession, in 1846, they had a total population of 97,000. It thus appears that we have received by accessions of territory, since 1840, an addition of 172,000 to the number of our people. The increase which has taken place in those extended regions since they came under the authority of our Government, should obviously be reckoned as a part of the development and progress of our population, nor is it necessary to complicate the comparison by taking into account the probable natural increase of this acquired population, because we have not the means of determining its rate of advancement, nor the law which governed its progress, while yet beyond the influence of our political system.

The total number of inhabitants in the United States, according to the returns of the census, was on the 1st of June, 1850, 23,258,760. The absolute increase from the 1st of June, 1840, has been 6,189,307, and the actual increase per cent. is slightly over 36 per cent. But it has been shown that the probable amount of population acquired by additions of territory should be deducted in making a comparison between the results of the present and the last census. These reductions diminish the total population of the country, as a basis of comparison, and also the increase. The relative increase, after this allowance, is found to be 35.17 per cent.

The aggregate number of whites in 1850 was 19,631,799, exhibiting a gain upon the number of the same class in 1840, of 5,436,004, and a relative increase of 38.20 per cent. But, excluding the 153,000 free population supposed to have been acquired by the addition of territory since 1840, the gain is 5,283,004, and the increase per cent. is 37.14.

The number of slaves, by the present census, is 3,198,324, which shows an increase of 711,111, equal to 28.58 per cent. If we deduct 19,000 for the probable slave population of Texas in 1840, the result of the comparison will be slightly different. The absolute increase will be 692,111, and the rate per cent. 27.83.