...appear at the surface till they have heated the water to their own temperature. When so much vapour has escaped that the expansive force of that which...restored, and this lasts until such a quantity of vapour is again collected as to produce a fresh eruption. The spouting of the spring is, therefore,...

...appear at the surface till they have heated the water to their own temperature. When so much vapour has escaped that the expansive force of that which...restored, and this lasts until such a quantity of vapour is again collected as to produce a fresh eruption. The spouting of the spring is, therefore,...

...appear at the surface till they have heated the water to their own temperature. When so much vapour has escaped that the expansive force of that which...restored, and this lasts until such a quantity of vapour is again collected as to produce a fresh eruption. The spouting of the spring is, therefore,...

...surface ; if, for example, they be arrested in caverns, the temperature in the upper layers of watermust necessarily become reduced, because a large quantity...repeated at intervals, depending upon the capacity of the cavern, the height of the column of water, and the heat generated below." The various groups of...

...in the upper layers of water must necessarily become reduced, because a large quantity of it islost by evaporation at the surface, which cannot be replaced...repeated at intervals, depending upon the capacity of the cavern, the height of the column of water, and the heat generated below." The various groups of...

...layers of water must necessarily become reduced, because alarge quantity of it is lost by evai>oration at the surface, which cannot be replaced from below....produce a fresh eruption. The spouting of the spring is thereforerepeated at intervals, depending upon the capacity of the cavern, the height of the column...

...trembling of the earth which precedes each eruption. The vapors do not appear at the surface till they hare heated the water to their own temperature. When so...repeated at intervals, depending upon the capacity of the cavern, the height of the column of water, and the heat generated below." The varions groups of...

...downward until its elastic force becomes sufficiently great to effect a passage through the colnmn of water which confines it. The violent escape of...is again collected as to produce a fresh eruption." Prof. Theo. B. Comstock, who visited the Yellowstone National Park in 1873, while thinking Bunsen's...

...the expansive force ofthat which remains has become less than the pressure of tho confining column "t water, tranquillity is restored, and this lasts until...repeated at intervals, depending upon the capacity of the cavern, the height of the •column of water, and the heat generated below. Bischof says that the...

...remains has become less than the pressure of the confining column of water, tranquility is restored, and lasts until such a quantity of vapor is again collected...as to produce a fresh eruption. The spouting of the geyser or spring is therefore repeated at intervals — like the blow off of a steam engine. The intermission...