A short treatise on the slavery of Negroes in the British Colonies : Shewing that they are much happier than in their native country, happier than the subjects of arbitrary governments, and at least as happy as the poor labourers of Great Britian and Ireland. By Samuel Martin, Senr. Esq; (by permission of the author,). - Martin, Samuel, (Printed and sold by Robert Mearns,, 1775)