In his message to Congress at the commencement of the session of 1806-7, President Jefferson suggested to that body the wisdom of abolishing the African slave-trade. He said in this connection:
"I congratulate you, fellow-citizens, on the approach of the period at which you may interpose your authority, constitutionally, to withdraw the citizens of the United States from all further participation in those violations of human rights which have so long been continued on the unoffending inhabitants of Africa, and which the morality, the reputation, and the best interest of our country have long been eager to proscribe."
This portion of the message was referred to a select committee; and in due time they reported a bill "to prohibit the importation or bringing of slaves into the United States or the territories thereof after the 31st day of December, 1807."
Mr. Early, of Georgia, the chairman of the committee, inserted a clause into the bill requiring that all slaves illegally imported "should be forfeited and sold for life for the benefit of the United States." A long debate ensued and was conducted with fiery earnestness from beginning to end. It was urged in support of the above regulation, that nothing else could be done but to sell them; that it would never do to release them in the States where they might be captured, poor, ignorant, and dangerous. It was said by the opponents of the measure, that Congress could not regulate the matter, as the States had the reserved authority to have slavery, and were, therefore, competent to say who should be free and who bond. It was suggested, farther along in the debate, that Congress might order such slaves into such States as prohibited slavery, where they could be bound out for a term of years. After a great many able speeches the House refused to strike out the forfeiture clause by a vote of sixty-three to thirty-six. When the act was called up for final passage, it was amended by inserting a clause imposing a fine of $20,000, upon all persons concerned in fitting out a vessel for the slave-trade; and likewise a fine of $5,000, and forfeiture of the vessel for taking on board any Negro or Mulatto, or any person of color, in any foreign port with the intention of selling them in the United States.
During these efforts at restriction the slave population was growing daily. The census of 1810 showed that within a decade the slave population had sprung from 893,041, in 1800, to 1,191,364,—an increase of 33 per cent. The following table exhibits this remarkable fact:
CENSUS OF 1810.—SLAVE POPULATION.
| District of Columbia | 5,395 |
| Rhode Island | 108 |
| Connecticut | 310 |
| Pennsylvania | 795 |
| Delaware | 4,177 |
| New Jersey | 10,851 |
| New York | 15,017 |
| Louisiana | 34,660 |
| Tennessee | 44,535 |
| Kentucky | 80,561 |
| Georgia | 105,218 |
| Maryland | 111,502 |
| North Carolina | 168,824 |
| South Carolina | 196,365 |
| Virginia | 392,518 |
| Mississippi Territory | 17,088 |
| Indiana Territory | 237 |
| Louisiana Territory | 3,011 |
| Illinois Territory | 168 |
| Michigan Territory | 24 |
On the 10th of December, 1817, Mississippi applied for admission into the Union with a slave constitution. The provisions relating to slavery dispensed with grand juries in the indictment of slaves, and trial by jury was allowed only in trial of capital cases.
During the session of 1817-8, Congress was besieged by a large number of memorials praying for more specific legislation against the slave-trade. During the session the old fugitive-slave act was amended so as to make it more effective, and passed by a vote of eighty-four to sixty-nine. In the Senate, with several amendments, and heated debate, it passed by a vote of seventeen to thirteen; but upon being returned to the House for concurrence, the Northern members had heard from their constituents, and the bill was tabled, and its friends were powerless to get it up.
In 1818-9, Congress passed an act offering a premium of fifty dollars to the informer of every illegally imported African seized within the United States, and twenty-five dollars for those taken at sea. The President was authorized to have such slaves removed beyond the limits of the United States, and to appoint agents on the West Coast of Africa to superintend their reception. An effort was made to punish slave-trading with death. It passed the House, but was struck out in the Senate.