They now become village umpires in all disputes about the condition of the slaves, and each thence forward ends all controversies with his oracular, "I've _seen_, and sure I ought to know." [Footnote 23: Well saith the Scripture, "A gift blindeth the eyes." The slaves understand this, though the guest may not; they know very well that they have no sympathy to expect from their master's guests; that the good cheer of the "big house," and the attentions shown them, will generally commit them in their master's favor, and against themselves. Messrs. Thome and Kimball, in their late work, state the following fact, in illustration of this feeling among the negro apprentices in Jamaica. "The governor of one of the islands, shortly after his arrival, dined with one of the wealthiest proprietors. The next day one of the negroes of the estate said to another, "De new gubner been _poison'd_." "What dat you say?" inquired the other in astonishment, "De gubner been _poison'd_! Dah, now!--How him poisoned?" "_Him eat massa's turtle soup last night_," said the shrewd negro. The other took his meaning at once; and his sympathy for the governor was turned into concern for himself, when he perceived that the poison was one from which he was likely to suffer more than his excellency."--_Emancipation in the West Indies_, p. 334.] But all northern visitors at the south are not thus easily gulled. Many of them, as the preceding pages show, have too much sense to be caught with chaff. We may add here, that those classes of visitors whose representations of the treatment of slaves are most influential in moulding the opinions of the free states, are ministers of the gospel, agents of benevolent societies, and teachers who have traveled and temporarily resided in the slave states--classes of persons less likely than any others to witness cruelties, because slaveholders generally take more pains to keep such visitors in ignorance than others, because their vocations would furnish them fewer opportunities for witnessing them, and because they come in contact with a class of society in which fewer atrocities are committed than in any other, and that too, under circumstances which make it almost impossible for them to witness those which are actually committed. Of the numerous classes of persons from the north who temporarily reside in the slave states, the mechanics who find employment on the _plantations_, are the only persons who are in circumstances to look "behind the scenes." Merchants, pedlars, venders of patents, drovers, speculators, and almost all descriptions of persons who go from the free states to the south to make money see little of slavery, except _upon the road_, at public inns, and in villages and cities.