Read the excerpt below and answer the question. A slave warehouse! Perhaps some of my readers conjure up horrible visions of such a place. They fancy some foul, obscure den, some horrible Tartarus "infromis, ingens, cui lumen ademptum." But no, innocent friend; in these days men have learned the art of sinning expertly and genteelly, so as not to shock the eyes and sense of respectable society. Human property is high in the market; and is, therefore, well fed, well cleaned, tended, and looked after, that it may come to sale sleek, and strong, and shining. A slave-warehouse in New Orleans is a house externally not much unlike many others, kept with neatness; and where every day you may see arranged, under sort of shed along the outside, rows of men and women, who stand there as a sign of the property sold within.

Then you shall be courteously entreated to call and examine, and shall find an abundance of husbands, wives, brothers, sisters, fathers, mothers, and young children, to be "sold separately, or in lots to suit the convenience of the purchaser;" and that soul immortal, once bought with blood and anguish by the Son of God, when the earth shook, and the rocks rent, and the graves were opened, can be sold, leased, mortgaged, exchanged for groceries or dry goods, to suit the phases of trade, or the fancy of the purchaser.

Discuss how the author uses verbal irony in the passage above. Use specific evidence. Your response should be at least 150 words long.