The duty and reward of propagating principles of religion and virtue exemplified in the history of Abraham : A sermon preach'd before the Trustees for establishing the colony of Georgia in America. And before the Associates of the late Rev. Dr. Thomas Bray for converting the negroes in the British plantations, and for other purposes. At their anniversary-meeting in the parish church of St. Mary-le-Bow. On Thursday March 15, 1732 /