The Act of 1847 (approved Feb. 16, § 1) reads,-- "No person shall keep or teach any school for the instruction of negroes or mulattoes in reading or writing in this State." Other similar laws might be produced; but these suffice to exhibit, in a clear light, the opportunities presented for the mental instruction of slaves! In some States, it is unlawful to teach even a FREE colored person to read or write! That these laws have been almost universally respected and obeyed, there is no room to doubt. No one has given more attention to this subject than the Rev. Chas. C. Jones, of Savannah, Ga. In 1842 he published, at Savannah, a work, containing the result of his researches, entitled "The Religious Instruction of the Negroes in the United States." In this work, p. 115, he says, "The statutes of our respective Slave States forbid all knowledge of letters to the negroes; and, where the statutes do not, custom does. It is impossible to form an estimate of the number of negroes that _read_. My belief is, that the proportion would be expressed by AN ALMOST INCONCEIVABLE FRACTION. The greatest number of readers is found in and about towns and cities, and among the FREE negro population some two or three generations removed from servitude."--As a confirmation of this testimony of Mr. Jones, we know no greater proof that the degraded class in any community is almost wholly uneducated, than that a large portion of the privileged class is so. The law of compensation is divine. We cannot degrade or brutalize our fellow-men, without degrading or brutalizing ourselves. Now, we find that, in the Slave States, almost one tenth of the free _white_ population over twenty years of age are unable to read and write! To some persons this may seem a small proportion; but, in the Free States, with all our ignorance, there are less than one in one hundred and fifty! and Horace Mann, the best authority on this subject, says that "at least four fifths of these are foreigners, who ought not to be included in the computation." In Connecticut, out of 163,843 free persons over twenty years of age, there are only 526 who are unable to read and write; while, in the model Slave State of South Carolina, out of only 111,663 free white persons over twenty years of age, there are 20,615 who cannot read and write! "In South Carolina," says Theodore Parker, "out of each 626 free whites more than twenty years of age, there are more than 58 wholly unable to read or write; out of that number of such persons in Connecticut, not quite two"! More than the sixth part of the adult freemen of South Carolina are unable to read the vote they deposit in the ballot-box! And Gov. Clarke, of Kentucky, declared in his message to the legislature in 1837, that one third of the adult population of that State were unable to write their names! While such is the state of the freemen, it is impossible that any considerable number of the slaves should become educated.