At one place was a fine display of basaltic columns, the position of which was horizontal, the flow having come up as a sheet injected from below, and not as a surface out-flow, where the jointage would have been vertical.

Finally, leaving this beautiful ravine, we made a rapid ascent, passing a little village consisting almost wholly of a school, noisy with study, and a church, with a separate square tower.

Shortly after reaching the summit, and dipping slightly, we found Tlacuilotepec.

It is not a large town.

At its center _mestizo,_ it has charge of several indian villages.