In some Mexican lakes of genial temperature, the little creature goes through its full history from the larva to the adult; but in cold mountain lakes, the adult form is never attained, and the larva (elsewhere immature) lays eggs that hatch its like.
Our last evening at Huixquilucan, I went out to purchase native garments.

We rode from house to house, and were quite away from the town in a district where houses were few and far between.

It was nearly dusk and our search must end.

We were at the last house on a slope near the bottom of a valley, on whose opposite slope were but a few houses.

The people were primitive in appearance, dress and language.