The Repair of Casa Grande Ruin, Arizona, in 1891
 Fifteenth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1893-94, Government Printing Office, Washington, 1897, pages 315-348

by Cosmos Mindeleff

"The Repair of Casa Grande Ruin, Arizona, in 1891" by Cosmos Mindeleff is a scientific publication written during the late 19th century. This detailed report discusses the evaluation and restoration efforts undertaken at the Casa Grande Ruin, a notable archaeological site in Arizona, which holds significant historical and cultural value. Mindeleff provides an in-depth analysis of the ruin's condition, its historical background, and the necessary repairs, reflecting a blend of archaeology and preservation science. The report begins with an introduction outlining the federal appropriation for repairs and the urgent need to protect the ruins from natural deterioration and vandalism. Mindeleff meticulously documents the various aspects of the restoration process, including the structural condition of the Casa Grande, plans for underpinning and bracing the walls, and the excavation of debris. He emphasizes the importance of preserving the site for future study, detailing the measures taken to ensure its structural integrity while maintaining its historical character. The report also includes illustrations, contracts, and findings from the excavation, ultimately highlighting the ongoing need for further preservation efforts to combat the effects of time and environmental wear.