Letter transmitting supplemental report on their past and present history, 21 I. HISTORICAL AND ETHNOLOGICAL MINUTES, 25 _a._ Sketch of the Iroquois Groups of Aboriginal Tribes, 25 _b._ Ethnological suggestions, 33 _c._ Indian Cosmogony, 36 _d._ Gleams of their ancient general history, 38 II. ORIGIN AND HISTORY OF THE IROQUOIS, AS A DISTINCT PEOPLE, 41 _a._ Mohawks, 43 _b._ Oneidas and the Oneida stone, (with three engravings,) 46 _c._ Onondagas, (with a figure,) 54 _d._ Cayugas, 57 _e._ Senecas and their origin, 59 _f._ Tuscaroras, and their flight from North Carolina, 64 _g._ Necariages, 69 _h._ St. Regis colony, 70 III. EPOCH AND PRINCIPLES OF THE IROQUOIS LEAGUE, 73 _a._ Considerations, 73 _b._ Era of the confederacy, 73 _c._ Principles of their government and Totemic Bond, 76 _d._ Ancient worship and system of astronomy, 85 _e._ Witchcraft, its theory and practical evils, 87 _f._ Wife’s right to property—limited nature of marriage contract, 88 IV. ARCHÆOLOGY, 91 _a._ Vestiges of an ancient French fort in Lenox, (with a plan,) 93 _b._ Ancient site of the Onondagas at Kasonda, (with a sketch,) 96 _c._ Antiquities of Pompey, Camillus, &c., 103 _d._ Ancient fort of Osco at Auburn, (with a plan,) 106 _e._ Vestiges of an ancient elliptical work at Canandaigua, (with an outline,) 109 _f._ Fort-Hill, Genesee county, (with a plan,) 111 _g._ Rock-citadel of Kienuka, in Niagara county, (with a plan,) 116 _h._ Circular fort at Deoseowa, Erie county, (with an outline,) 120 V. ANCIENT STATE OF INDIAN ART, 125