desirability of its further protection 347
V. Letter of the Director of the Bureau of American
Ethnology to the Secretary of the Interior
regarding the examination of Casa Grande by
Mr W J McGee 347
VI. Report of the Director of the Bureau of American
Ethnology to the Secretary of the Interior on the
examination of the condition of Casa Grande by
Mr W J McGee, with a recommendation concerning
its further protection 348


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