The next great question all but led to the breaking up of the convention. The New Hampshire delegate had not yet appeared, and Rhode Island was never represented in the convention; the large states had therefore a majority of one. On June 13 it was voted that the ratio of representation in both branches of the legislature should be in proportion to the population. Two days later, Patterson of New Jersey brought forward a plan satisfactory to the small States, by which the old plan of vote by States was to be retained, and the Confederation practically continued. For many days the two parties were unable to agree; the crisis was so serious that on June 28 Franklin, who was not renowned for piety, moved that thenceforward the sessions be opened with prayer. The deadlock was finally broken by the so-called Connecticut Compromise, adopted July 7: equal representation was to be preserved in the upper house, and proportional representation was to be granted in the lower. [Sidenote: Representation of slaves.] When it was proposed to levy taxes on the same basis, the Southern members objected that their negroes were not equal to freemen as producers of wealth. On July 12, the matter was adjusted by a compromise: the Southerners agreed to count slaves only at three fifths of their number, in apportioning both representatives and direct taxes. Since direct taxes have been but three times assessed in the history of the United States, the practical advantage was on the side of the North. [Sidenote: Slave trade.] It was otherwise in the third difficult question. Near the end of the convention the commercial and the agricultural States came into a disagreement. New England was anxious that Congress should have power to pass Acts protecting American shipping; on the other hand, the South desired to continue the slave-trade. Pinckney declared that "South Carolina can never receive the plan if it prohibits the slave-trade;" and Sherman of Connecticut cynically remarked, "The slave-trade is iniquitous; but inasmuch as the point of representation was settled, he should not object." On August 24 a third compromise left to Congress the power of passing Navigation Acts, but forbade it to prohibit the slave-trade during twenty years. 64. DETAILS OF THE CONSTITUTION (1787). [Sidenote: Difficult questions.]