First Edition thus; first combined edition, with two volumes in one. A major work by Morgan, the first scientific account of the Iroquois tribe to be published, hailed as an pioneering achievement. Includes 8-panel laid-in color folding map and a tipped-in 8-panel color folding map. Illustrated with several reproductions of black-and-white figures. Very good in original navy blue cloth decorated in gilt on upper cover and spine. Top edge gilt, deckled edges. Boards lightly rubbed, light marking in pen and pencil throughout. Florida archaeologist Charles H. Fairbank's copy, with his previous ownership signature on half-title. Octavo. 16.5 x 24.5 cm. xxiv; 332pp.