Rapport annuel du Bureau d'ethnologie à la secrétaire de la Smithsonian Institution . de Casa Grande de M. W .J McGee, avec une recommandation concernant l'autre protection ts i 348 317 PAGE ILLUSTRATIONS tXII plaque. Carte de la Casa Grande group 321 CXIII. Rez xilan de Casa Grande ruine 322 CXIV. Vue générale de Casa Grande 325 CXV. Murs intérieurs 326 CXVI. Avant de l'ouest de Casa Grande montrant des blocs de maçonnerie 329 CXVII. Plan montrant l'érosion au niveau du sol, tic-d'accouplement, limites de travail, et les lignes de terrain les articles 330 CXVIII. L'EST-et-ouest sections au sol 333 CXIX. Au nord-et-sol sud

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Annual report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution . of Casa Grande by Mr W .J McGee, with a recommenda-tion concerning i ts further protection 348 317 ILLUSTRATIONS Page Plate tXII. Map of the Casa Grande group 321 CXIII. Ground xilan of Casa Grande ruin 322 CXIV. General view of Casa Grande 325 CXV. Interior wall surface 326 CXVI. West front of Casa Grande showing blocks of masonry 329 CXVII. Plan showing ground-level erosion, tic-rods, limits of work, and lines of ground sections 330 CXVIII. East-and-west ground sections 333 CXIX. North-and-south ground sections 335 CXX. South front of the ruin, showing underpinning and ends of tie-rods 337 CXXI. View from the sontheast before the completion of the work 339 CXXII. Suggested plan of roof and support 340 CXXIII. Section through A-B of roof jilan, showing suggested roof support .• 343 CXXIV. Section through C-D of roof plan, showing suggested roof support 345 CXXV. Map showing location of Casa Grande reservation 346 319 d»—1 r^ BUSEAU OF ETHNOLOGV FIFTEENTH AM^UAL REPOfiT PL. CXIl. THE REPAIR OF CASA GRANDE RUIN By Cosmos Mindeleff INTRODUCTION 111 Mareli, 1S89, an appropriatiou of $2, 000 was made by Congressfor the repair of Casa Grande ruin in soutbern Arizona. This amountwas iusuflicient for comiilete restoration, but under the authoritj- of theact of Congress making the appropriation some work was done. Partlyas an aid to further possible work, and partly that there may be anavailable record of what has been done for the benefit of future stu-dents of American archeology, this report is presented. A full description of Casa Grande has been given by the writer in apublislied memoir on that ruin, hence only a brief account will nowbe necessary to aid in making the present report intelligible. Follow-ing this description is a statement of the condition of the ruin in 1891and of the plans formed for its repair, the latter being necessarily con-trolled by the amount appropri

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