No doubt this separation of families is a crying evil, and perhaps the greatest practical one, as respects hardship, to which the system is necessarily subject; but certainly, from what we have seen and heard to-day, it does not seem to be harshly done, and pains are taken to avoid it: the woman said she had been always kindly treated, and there was not the slightest difficulty made by the dark duenna to our conversing with the slaves as freely as we liked, and she left us with the whole group. The woman took us to see her baby, and we found it in a large and well ventilated room, and she said they had always as much and as good food as they could wish. She said she was forty-five years old, and had ten children living, but the four eldest were grown up. The eldest of those she had with her was a little girl of about thirteen; she said, in answer to a question from papa, that the children had made a great piece of work at parting with their father, but the woman herself seemed quite cheerful and satisfied with her prospects. On our journey here there were a great many slaves in the car with us, coming to pass their Sunday at Lexington. They seemed exceedingly merry, and one, whom papa sat next, said he had accumulated $950, and that when he got $1900, he would be able to purchase his freedom. He said his master was a rich man, having $300,000, and that he was very well treated; but that some masters did behave very badly to their slaves, and often beat them whether they deserved it or not. From the specimen we had of those in the cars, they seemed well-conditioned men, and all paid the same fare that we did, and were treated with quite as much attention. They seem to get some sort of extra wages from their masters besides their food and raiment, out of which they can lay by if they are provident, so as to be able to purchase their freedom in time; but they do not seem always to care about this, as one man here has $4000, which would much more than suffice to buy his freedom; but he prefers remaining a slave. We shall probably see a good deal more of the condition of the slaves within the next few days, so I shall say no more upon the subject at present, excepting that all this does not alter the view which we cannot help taking of the vileness of the institution, though it certainly does not appear so very cruel in practice as it is often represented to be by the anti-slavery party.