The ceilings of Casa Grande are extraordinarily high; and bodies found buried in sealed up chambers behind the ruins of the other compounds are five or six feet long, showing this was no dwarf race. The rooms do not run off rectangular halls as our rooms do. You tumble down stone steps through a passage so narrow as to catch your shoulders into a room deep and narrow as a grave. Then you crack your head going up other steps off this room to another compartment. Bodies found at Casa Grande lie flat, headed to the east. Bodies found in the caves are trussed up knees to chin, but as usual the bodies found at Casa Grande have been shipped away East to be stored in cellars instead of being left carefully glassed over, where they were found. Lower altitude, or the great age, or the quality of the clays, may account for the peculiarly rich shades of the pottery found at Casa Grande. The purples and reds and browns are tinged an almost iridescent green. Running back from the Great House is a heavy wall as of a former courtyard. Backing and flanking the walls appear to have been other houses, smaller but built in the same fashion as Casa Grande. Stand on these ruined walls, or in the doorway of the Great House, and you can see that five such big houses have once existed in this compound. Two or three curious features mark Casa Grande. Inside what must have been the main court of the compound are elevated earthen stages or platforms three to six feet high, solid mounds. Were these the foundations of other Great Houses, or platforms for the religious theatricals and ceremonials which enter so largely into the lives of Southwestern Indians? At one place is the dry bed of a very ancient reservoir; but how was water conveyed to this big community well? The river is two miles away, and no spring is visible here. Though you can see the footpath of sandaled feet worn in the very rocks of eternity, an irrigation ditch has not yet been located. This, however, proves nothing; for the sand storms of a single year would bury the springs four feet deep. A truer indication of the great age of the reservoir is the old tree growing up out of the center; and that brings up the question how we know the age of these ancient ruins--that is, the age within a hundred years or so. Ask settlers round how old Casa Grande is; and they will tell you five or six hundred years. Yet on the very face of things, Casa Grande must be thousands of years older than the other ruins of the Southwest. Why?