The descent was easy and rapid, though dangerous, until we got below the snow line.

At the cabin we mounted our horses, and by night were at Ozumba.
The fatigues of the day and the loss of sleep the night before drove us to bed early.

Our beds consisted of a place on the dirt-floor with a blanket under us.

Soon all were asleep; but long before morning first one and then another of our party began to cry out with excruciating pain in the eyes.

Not one escaped it.