Hon C.F. MERCER, in a speech before the same Convention, in 1829, says:
"The tables of the natural growth of the slave population demonstrate, when compared with the increase of its numbers in the commonwealth for twenty years past, that an annual revenue of not less than a million and a half of dollars is derived from the exportation of a part of this population." (Debates, p. 199.)
Hon. HENRY CLAY, of Ky., in his speech before the Colonization Society, in 1829, says:
"It is believed that nowhere in the farming portion of the United States, would slave labor be generally employed, if the proprietor were not tempted to RAISE SLAVES BY THE HIGH PRICE OF THE SOUTHERN MARKET WHICH KEEPS IT UP IN HIS OWN."
The New Orleans Courier, Feb. 15, 1839, speaking of the prohibition of the African Slave-trade, while the internal slave-trade is plied, says:
"The United States law may, and probably does, put MILLIONS into the pockets of the people living between the Roanoke, and Mason and Dixon's line; still we think it would require some casuistry to show that the present slave-trade from that quarter is a whit better than the one from Africa. One thing is certain—that its results are more menacing to the tranquillity of the people in this quarter, as there can be no comparison between the ability and inclination to do mischief, possessed by the Virginia negro, and that of the rude and ignorant African."
That the New Orleans Editor does not exaggerate in saying that the internal slave-trade puts 'millions' into the pockets of the slaveholders in Maryland and Virginia, is very clear from the following statement, made by the editor of the Virginia Times, an influential political paper, published at Wheeling, Virginia. Of the exact date of the paper we are not quite certain, it was, however, sometime in 1836, probably near the middle of the year—the file will show. The editor says:—
"We have heard intelligent men estimate the number of slaves exported from Virginia within the last twelve months, at 120,000—each slave averaging at least $600, making an aggregate at $72,000,000. Of the number of slaves exported, not more than one-third have been sold, (the others having been carried by their owners, who have removed,) which would leave in the state the SUM OF $24,000,000 ARISING FROM THE SALE OF SLAVES."
According to this estimate about FORTY THOUSAND SLAVES WERE SOLD OUT OF THE STATE OF VIRGINIA IN A SINGLE YEAR, and the 'slave-breeders' who hold them, put into their pockets TWENTY-FOUR MILLION OF DOLLARS, the price of the 'souls of men.'
The New York Journal of Commerce of Oct. 12, 1835, contained a letter from a Virginian, whom the editor calls 'a very good and sensible man,' asserting that TWENTY THOUSAND SLAVES had been driven to the south from Virginia during that year, nearly one-fourth of which was then remaining.