Subject
Slavery -- Washington (D.C.) books
3 free books about slavery -- washington (d.c.), free to read online. Chapter 1 of any book is free, no account needed.

Speech of Mr. Cushing, of Massachusetts, on the Right of Petition, as Connected with Petitions for the Abolition of Slavery and the Slave Trade in the District of Columbia. In The House Of Representatives, January 25, 1836.
The Trial of Reuben Crandall, M.D.
Charged with Publishing and Circulating Seditious and Incendiary Papers, &c. in the District of Columbia, with the Intent of Exciting Servile Insurrection. Carefully Reported, and Compiled from the Written Statements of the Court and the Counsel.