It is evident that raw _Boehmeria_ fiber, properly treated, produces especially fine, soft, and strong material. It is easily distinguished from the fibers of the other members of the family by its smaller size, the shape of the cells, and their distribution when seen in cross-section. Both the _Urtica_ and _Laportea_ fibers are coarser and the ratio of length to width of the fiber is much greater. The lumen in all three is longer one way than the other, but is much more open in _Boehmeria cylindrica_ than the other species. The slender nettle (_Urtica gracilis_, Ait.) seems to have been a favorite source for all peoples from prehistoric to modern Indians. Its use extended from New England to Wisconsin. It was usually processed before use, except among some of the prehistoric peoples where it was merely twisted into cord. A bag from the caves of Tennessee (USNM 132255) is made from this fiber which has had some preliminary treatment. A modern Sauk and Fox bag (MAIHF 2-7911) shows complete preliminary processing. Some string in the Peabody Museum of Harvard University (A4109), is made from this plant; this is protohistoric material. The Hopewell culture of Ohio is represented by twelve specimens using this fiber, all of which show some preliminary treatment. A sample of cloth from a copper plate is representative (OSHAM 283). The cave and rock-shelter cultures of Ohio are represented, but here the fiber seems to have received little, if any, preliminary treatment prior to use (OSHAM 332-42). The woods nettle (_Laportea canadensis_, L.) was most widely used of all of the _Urticaceae_, both before and after treatment. It was used by the Sauk and Fox for bags, after it had received thorough treatment. In the Milwaukee Public Museum is a bag (30260) made of this material, thoroughly treated before being twisted into fine cord. A string used for tying a spear point to a shaft is in the Ojibway collection of the American Museum (50-4748). The Iroquois used it to make burden straps (MAIHF 19-8895). Braided cloth from prehistoric Kentucky is represented by a specimen (56795) in the Peabody Museum of Harvard University. The cave culture of Tennessee is represented in the United States National Museum by a shirt (132254) made from this fiber. The Hopewell culture of Ohio is well represented by fabrics in the Ohio State Historical and Archaeological Museum (957, is an example). The cave and rock-shelter culture of the same state employed this fiber to make twined cords as is exemplified by a cord (OSHAM 332-34). The cave and rock-shelter cultures of Arkansas used it for the manufacture of twisted cords as may be seen in a specimen (19-4630) in the Museum of the American Indian, Heye Foundation. OBJECTS FROM SPIRO MOUND, OKLAHOMA The well-known Spiro Mound, clearly prehistoric, furnished some examples of basketry, matting, cord, and cloth. The samples were sent to the writer by Mr. H. M. Trowbridge, Bethel, Kansas.