Section 3 gives the Secretary of the Treasury wide discretion as to the regulations which he may deem fit to issue from time to time. Section 4 enacts that "all foreign convicts, except those convicted of political offences, upon arrival shall be sent back to the nations to which they belong." Lastly--and this is most important--"the expense of the return of such passengers as are not permitted to land shall be borne by the owners of the vessel in which they came." II.--THE ALIEN CONTRACT LABOUR LAW, 1885. By Section 1 it is made unlawful for any person, company, etc., to prepay the transportation, or in any way assist the importation, of aliens under contract to perform labour made previous to the importation. Section 2 declares that all such contracts shall be void in the United States. Section 3 imposes a penalty of one thousand dollars for each violation of Section 1. Section 4 declares that any master of a vessel knowingly bringing any such labourers into the United States, is guilty of a misdemeanour, and will be fined five hundred dollars for each labourer, or six months' imprisonment, or both. Section 5 makes certain exceptions to the excluded classes, in the case of a skilled workman engaged to carry out a new industry not already established in the United States, and so forth. In 1885 further sections were added to this Act, providing for the examination of ships; for the non-landing of prohibited persons; for the return of such persons by Boards designated by the Secretary of the Treasury; and for compelling the expense of the return of such persons to be borne by the owners of the vessels which brought them to America; the owners and masters of vessels refusing to pay such expenses, not being allowed to land at, or clear from, any port in the United States. III.--THE IMMIGRATION ACT OF 1891. The new Act may briefly be analyzed as follows:--Section 1 specifies the classes of aliens henceforth to be excluded from admission to the United States, viz.--All idiots, insane persons, paupers, or persons likely to become a public charge; persons suffering from a loathsome or a dangerous contagious disease; persons who have been convicted of felony or other infamous crime or misdemeanour involving moral turpitude; polygamists; and also any persons whose ticket or passage is paid for with the money of another, or who is assisted by others to come, unless it is satisfactorily shown on inquiry that such person does not belong to any of the foregoing excluded classes, or to the class of contract labourers excluded by the Act of 1885. As in the Act of 1882, the exclusion of persons convicted of political offences is carefully guarded against. Section 2 provides for the more vigorous enforcement of the Act of 1885.