ILLUSTRATIONS

Plate CXII.  Map of the Casa Grande group 321
     CXIII.  Ground plan 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, tie-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 southeast before the completion
              of the work 339
     CXXII.  Suggested plan of roof and support 340
    CXXIII.  Section through A-B of roof plan,
              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

[Transcriber’s Note:  In the original, all illustrations are full-page plates distributed evenly through the text.  Their exact position has not been shown in this e-text.]

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The repair of Casa Grande ruin

By Cosmos Mindeleff

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INTRODUCTION

In March, 1889, an appropriation of $2,000 was made by Congress for the repair of Casa Grande ruin in southern Arizona.  This amount was insufficient for complete restoration, but under the authority of the act of Congress making the appropriation some work was done.  Partly as an aid to further possible work, and partly that there may be an available record of what has been done for the benefit of future students of American archeology, this report is presented.

A full description of Casa Grande has been given by the writer in a published memoir[1] on that ruin, hence only a brief account will now be necessary to aid in making the present report intelligible.  Following this description is a statement of the condition of the ruin in 1891 and of the plans formed for its repair, the latter being necessarily controlled by the amount appropriated.  After this there is an account of the work done, from the passage of the bill until the delivery of the work to the agent of the United States who received it, and of the reservation, of an area of land about the ruin by order of the