- The Economic Development of a Norfolk Manor, 1086-1565 (Classic Reprint)
- Guide to the Manuscript Materials for the History of the United States to 1783, in the British Museum, in Minor London Archives, and in the Libraries of Oxford and Cambridge
- America and European Diplomacy to 1648 (Classic Reprint)
- European treaties bearing on the history of the United States and its dependencies (Volume II) 1650-1697
- European Treaties Bearing on the History of the United States and Its Dependencies to 1648 (Carnegie Institution of Washington Publication)