one coarse, ichtli, the other much finer, pito; the first made from the great aloe that produces pulque, the other from a much smaller species of the same genus. The stones with which the boiled maize is ground into the paste of which the universal tortillas are made were to be had here; indeed, they are made in the neighbourhood, of the basalt and lava which abound in the district. The metate is a sort of little table, hewn out of the basalt, with four little feet, and its surface is curved from the ends to the middle. The metalpile is of the same material, and like a rolling-pin. The old-fashioned Mexican pottery I have mentioned already. It is beautifully made, and very cheap. They only asked us nine-pence for a great olla, or boiling-pot, that held four or five gallons, and no doubt this was double the market-price. I never so thoroughly realized before how climate is altered by altitude above the sea as in noticing the fruits and vegetables that were being sold at this little market, within fifteen or twenty miles of which they were all grown. There were wheat and barley, and the piñones (the fruit of the stone-pine, which grows in Italy, and is largely used instead of almonds); and from these representatives of temperate climates the list extended to bananas and zapotes, grown at the bottom of the great barrancas, 3,000 or 4,000 feet lower in level than the plateau, though in distance but a few miles off. Three or four thousand miles of latitude would not give a greater difference.
It would never do to be late, and break our necks in one of the awkward water-courses that cut the plateau about in all directions; so we started