There is a very singular shrub, which grows abundantly in the west, and is to be found in all parts of Texas. It is no less than the "mosquito tree." It is a very slim, and willowy looking shrub, and would seem to be of little use for any industrial purposes; but is has extraordinary roots growing like great timbers underground, and possessing such qualities of endurance in all situations that it is used and very highly valued for good pavements. The city of San Antonio is said to be paved with these roots. It reminds one of those Christians who make little show externally, but their growth is chiefly underground -- out of sight, in the depth of God. These are the men and women that God uses for the foundation of things, and for the pavements of that city of God which will stand when all earthly things have crumbled into ruin and dissolved into oblivion.
Deeper, deeper let the living waters flow;