Sentence:  Josiah Nott, readying one of his broadsides for publication, wrote: "All the articles I have written on <WSD>niggerology</WSD> have been eagerly sought for at the South, and in the present excited state of the political world, I think the thing will go well. 
Meaning of the word marked with <WSD> tags:  The study of black people, especially when isolated as a problem group.