Perishable: Yucca Yarn AMNH 29.0/7729

Yucca Yarn, Accession AMNH29.0, Catalog #7729. Morris FS 1322. Analyzed by Laurie Webster, 2006. Bundle of yucca yarn, plied, 3Z-S, possibly for twined sandals. Image: AMNH 29.0/7729A: bundle of 3z-S yucca yarn, possible warp for twined sandals. Recovered from Earl Morris' excavation of Room 48, Aztec West Ruin. Earl Morris’ description of Room 48 at the time of excavation is as follows. “The floor was covered with refuse.. The greater proportion of this deposit was of vegetable substance; cornstalks, husks, tassels, and cobs, cedarbark, splinters of the same wood, as well as human excrement. This deposit of Chaco age had been completely protected from moisture and constituted, aside from some found in the caves of Del Muerto canyon, the richest repository for perishable artifacts that has come within the experience of the writer. Above this sand had worked down through the second floor before the timbers supporting the latter had failed. These had fallen in recent times, after the mound had reached its final form, as evidenced by the ragged crater left by the settling of the debris above them subsequent to their collapse” (Morris 1928:307-308). Reference: Earl Morris, 1928, Notes on Excavations in the Aztec Ruin, Volume XXVI, Part V, Anthropological Papers of the American Museum of Natural History, New York.丝兰纤维绳（Yucca Yarn），馆藏编号AMNH29.0，目录号7729，档案号Morris FS 1322。2006年由劳里·韦伯斯特（Laurie Webster）完成分析。该标本为加捻丝兰纤维绳束，捻向为3Z-S，疑似用于制作缠编凉鞋（twined sandals）。 图像：AMNH 29.0/7729A：3Z-S加捻丝兰纤维绳束，疑似为缠编凉鞋（twined sandals）的经纱（warp）。 该标本出土自厄尔·莫里斯（Earl Morris）对阿兹特克西遗址（Aztec West Ruin）48号房址的发掘工作。 厄尔·莫里斯在发掘时对48号房址的描述如下："房址地面遍布废弃物堆积。该堆积的主体为植物性遗存，包括玉米秆、玉米苞叶、雄穗、穗轴、雪松树皮及该木材的碎料，此外还包含人类排泄物。这套查科文化（Chaco age）时期的堆积层完全未受潮气侵蚀，除德尔穆尔托峡谷（Del Muerto canyon）洞穴中出土的同类遗存外，这是笔者所见保存最为完好的易腐朽人工制品富集埋藏点。在支撑二层地板的木构坍塌前，泥沙已渗入该堆积层。这些木构是在土丘最终成型后于近期坍塌的，其坍塌后上方堆积物沉降形成的不规则坑洼即为佐证"（Morris 1928:307-308）。 参考文献：厄尔·莫里斯（Earl Morris），1928年，《阿兹特克遗址发掘笔记》（Notes on Excavations in the Aztec Ruin），第XXVI卷，第五部分，《美国自然历史博物馆人类学论文集》（Anthropological Papers of the American Museum of Natural History），纽约。