Fоrty-Seventh Cоngress. Sessiоn I. 1882. Chаpter 126. An аct to execute certаin treaty stipulations relating to Chinese. . . . Preamble. Whereas, in the opinion of the Government of the United States the coming of Chinese laborers to this country endangers the good order of certain localities within the territory thereof: Therefore, Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That from and after the expiration of ninety days next after the passage of this act, and until the expiration of ten years next after] the passage of this act, the coming of Chinese laborers to the United States be, and the same is hereby, suspended; and during such suspension it shall not be lawful for any Chinese laborer to come, or having so come after the expiration of said ninety days to remain within the United States. . . . What is the main purpose of this act of Congress?