The upholders of slavery in America—of the atrocities of which system, I shall not write one word for which I have not ample proof and warrant —may be divided into three great classes.

The first, are those more moderate and rational owners of human cattle, who have come into the possession of them as so many coins in their trading capital, but who admit the frightful nature of the Institution in the abstract, and perceive the dangers to society with which it is fraught: dangers which however distant they may be, or howsoever tardy in their coming on, are as certain to fall upon its guilty head, as is the Day of Judgment.

The second, consists of all those owners, breeders, users, buyers and sellers of slaves, who will, until the bloody chapter has a bloody end, own, breed, use, buy, and sell them at all hazards; who doggedly deny the horrors of the system, in the teeth of such a mass of evidence as never was brought to bear on any other subject, and to which the experience of every day contributes its immense amount; who would at this or any other moment, gladly involve America in a war, civil, or foreign, provided that it had for its sole end and object the assertion of their right to perpetuate slavery, and to whip and work and torture slaves, unquestioned by any human authority, and unassailed by any human power; who, when they speak of Freedom, mean the Freedom to oppress their kind, and to be savage, merciless, and cruel; and of whom every man on his own ground, in republican America, is a more exacting, and a sterner, and a less responsible despot, than the Caliph Haroun Alraschid in his angry robe of scarlet.

Before leaving Boston, I devoted one day to an excursion to Lowell. I assign a separate chapter to this visit; not because I am about to describe it at any great length, but because I remember it as a thing by itself, and am desirous that my readers should do the same.

I made acquaintance with an American railroad, on this occasion, for the first time. As these works are pretty much alike all through the States, their general characteristics are easily described.

There are no first and second class carriages as with us; but there is a gentlemen's car and a ladies' car: the main distinction between which is that in the first, everybody smokes; and in the second, nobody does. As a black man never travels with a white one, there is also a negro car; which is a great blundering clumsy chest, such as Gulliver put to sea in, from the kingdom of Brobdignag. There is a great deal of jolting, a great deal of noise, a great deal of wall, not much window, a locomotive engine, a shriek, and a bell.

The cars are like shabby omnibusses, but larger: holding thirty, forty, fifty, people. The seats, instead of stretching from end to end, are placed crosswise. Each seat holds two persons. There is a long row of them on each side of the caravan, a narrow passage up the middle, and a door at both ends.