The manufacturers of printing presses, lithographic presses, copying machines, &c., have been forbidden to sell them without sending the buyers’ names to the Police department.—It is rumored that two attempts have been made to assassinate the President, but they are not sufficiently authentic to be deemed reliable. 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.