284 THE GEYSERS OF MONTANA. 
= pga than any other of which we obtained any knowledge in the 
valley. (Fig. 59.) * There are two orifices in one basin ; one of 
spring in a state of quiescence, and no one would for a moment 
su aspect the power that was temporarily slumbering below. The 
orifice is oblong, 2} by 4 feet, while for the space of 10 feet in 
every direction ‘around it are rounded masses of silica, from a few 
inches to 3 feet in diameter, looking like spongiform corals. No- 
thing could exceed the crystal clearness of the water.” 
Fig. 60 gives a view of another eruption of the same geyser. 
As an example of exhausted geysers may be cited the Punch, 
Bowl (Fig. 61), which is a low crater or chimney in which the 
Fig. 61. 
( ( "he iia a \ 
J As £3 pe PF Wiles \ ] 
Ige 
4 int gh F 
= 
Re, Bows 
water boils two or three feet high only. A large example of a 
„rugged crater is the Giant (Fig. 62); which says Mr. Langford, in 
‘* Seribner’s Monthly” “ has a rugged crater, ten feet in diameter 
on the outside, with an irregular orifice five or six feet in diameter. 
It discharges a vast body of water, and the only time we saw it in 
eruption the flow of water in a column five feet in diameter, and 
one hundred and forty feet in vertical height, continued uninter- 
ruptedly for nearly three hours. The crater resembles a minia- 
ture model of the Coliseum.” 
The “ Giantess,” however, honored the party a a grail 
eruption, an account of which we give in Prof. Hayden’s own 
wor 
. 
o. 
“ Our search for new wonders leading us across the Fire-Hole 
tiver, we ascended a gentle incrusted slope, and came suddenly 
n a large oval aperture with scalloped edge es, the damita of 
Which were 18 and 25 feet, the sides corrugated and covered with 
