Massachusetts. General Court. Joint special committee on slavery.

• Report and resolves on the subject of slavery
• Report of the committee to whom was referred the memorial of the Anti-Slavery Society
• Report of the committee to whom was referred the memorial of the Anti-slavery society
• Commonwealth of Massachusetts, in the House of Representatives, March 6, 1840
• In Senate, March 24, 1851
• Report on the powers and duties of Congress upon the subject of slavery and the slave trade
• Resolves concerning slavery
• [Report on slavery