Short observations on slavery, introductory to some extracts from the writing of the Abbé Raynal on that important subject.

Eitemau Tebyg

• A short account of that part of Africa inhabited by the Negroes with respect to the fertility of the country, the good disposition of many of the natives and the manner by which the slave trade is carried on extracted from divers authors .
  gan: Benezet, Anthony, 1713-1784
  Cyhoeddwyd: (1762)
• Some historical account of Guinea, its situation, produce and the general disposition of its inhabitants, with an inquiry into the rise and progress of the slave trade, its nature and lamentable effects, also A re-publication of the sentiments of several authors of note on this interesting subject, particularly an extract of a treatise by Granville sharp
  gan: Benezet, Anthony, 1713-1784
  Cyhoeddwyd: (1771)
• A caution to Great Britain and her colonies in a short representation of the calamitous state of the enslaved Negroes in the British dominions
  gan: Benezet, Anthony, 1713-1784
  Cyhoeddwyd: (1767)
• Observations upon Negro slavery
  gan: Crawford, Charles, b. 1752
  Cyhoeddwyd: (1770)
• Thoughts on slavery
  gan: Wesley, John, 1703-1791
  Cyhoeddwyd: (1839)