Note XI-60 — Chapter XI · ANTIQUITIES OF ARIZONA AND NEW MEXICO.

Simpson's Jour. Mil. Recon., pp. 90-3. 'It is divided into four solid squares, having but two streets, crossing its centre at right angles. All the buildings are two stories high, composed of sun-dried brick. The first story presents a solid wall to the street, and is so constructed, that each house joins, until one fourth of the city may be said to be one building. The second stories rise from this vast, solid structure, so as to designate each house, leaving room to walk upon the roof of the first story between each building.' Hughes' Doniphan's Ex., p. 195; see also Whipple, in Pac. R. R. Rept., vol. iii., pp. 67-8, with view; Möllhausen's Journey, p. 97.