“ When a Bill shall be sent up by the House of Representatives to the Senate, it shall be carried by two Members, who at the bar of the Senate, shall make their Obeisance to the President, and thence advancing to the Chair make a second Obeisance, and deliver it into the hands of the President. After having delivered the Bill, they shall make their obeisance to the President, and repeat it as they retire from the bar. The Senate shall rise on the entrance of the Members within the bar, & continue standing till they retire. ”