GEYSERS, AND HOW THEY WORK.
THE GRAND GEYSER OF ICELAND.
Geysers, or fountains of hot water or mud, are found in several parts of the world. Iceland possesses the grandest one, but in California there are a great many of these natural hot fountains, most of which throw forth mud as well as water. Some of the American Geysers are terrible things to behold. They are generally found near each other, in particular localities, and any one wandering about among them sees in one place a great pool full of black bubbling contents, so hot that an egg thrown in the spring will be boiled in a minute or two; there he sees another spring throwing up boiling mud a few feet in the air; there another one, quiet now, but which may at any time burst out and send its hot contents high above the heads of the spectators; here a great hole in the ground, out of which constantly issues a column of steam, and everywhere are cracks and crevices in the earth, out of which come little jets of steam, and which give the idea that it would not require a very heavy blow to break in, at any point, the crust of the earth, and let the adventurous traveller drop down into the boiling mass below.
In Iceland the Geysers are not quite so terrible in their aspect as those in California, but they are bad enough. Their contents are generally water, some hot and bubbling, and some hot and still; while the Great Geyser, the grandest work of the kind in the world, bursts forth at times with great violence, sending jets of hot water hundreds of feet into the air.
THE ARTIFICIAL GEYSER.