New Bedford has produced a number of highly-intelligent men of the "doomed race;" men who, by their own efforts, have attained positions, intellectually, which, if they had been of the more favored class, would have introduced them into the halls of Congress. One of these is J. B. Sanderson. An industrious student, and an ardent lover of literature, he has read more than almost any one of his years within our circle of acquaintance. History, theology, and the classics, he is master of. We first met him while he was on a tour through the west, as a lecturer on slavery, and the impression then made on our mind became still stronger as we knew more of him. Although not at the time an ordained minister Mr. Sanderson, in 1848, preached for one of the religious societies of New Bedford, on Sunday, and attended to his vocation (hair dresser) during the week. Some of the best educated of the whites were always in attendance on these occasions. His sermons were generally beyond the comprehension of his hearers, except those well read. Emerson, Carlyle, and Theodore Parker, were represented in his discourses, which were always replete with historical incidents. Mr. Sanderson has been several years in California, where he now preaches to an intelligent congregation and is considered one of the ablest religious teachers in the Pacific state. "Honor and fame from no condition rise: Act well your part--there all the honor lies." "Who does the best his circumstance allows, Does well, acts nobly: angels could no more." In stature Mr. Sanderson is somewhat above the medium height, finely formed, well-developed head, and a pleasing face; an excellent voice, which he knows how to use. His gestures are correct without being studied, and his sentences always tell upon his audience. Few speakers are more happy in their delivery than he. In one of those outbursts of true eloquence for which he is so noted, we still remember the impression made upon his hearers, when, on one occasion, he exclaimed, "Neither men nor governments have a right to sell those of their species; men and their liberty are neither purchasable nor salable. This is the law of nature, which is obligatory on all men, at all times, and in all places." All accounts from California speak of J. B. Sanderson as doing more for the enfranchisement and elevation of his race than any one who has gone from the Atlantic states. TOUSSAINT L'OUVERTURE. At the commencement of the French revolution, in 1789, there were nine hundred thousand inhabitants on the Island of St. Domingo. Of these, seven hundred thousand were Africans, sixty thousand mixed blood, and the remainder were whites and Caribbeans. Like the involuntary servitude in our own Southern States, slavery in St. Domingo kept morality at a low stand. Owing to the amalgamation between masters and slaves, there arose the mulatto population, which eventually proved to be the worst enemies of their fathers.