395 SPRINGS AND WELLS. * 
served that tlie whole of the country about Wig^Oj 
compass of several miles, is underlaid with ' ,3 
phenomenon may therefore be referred to the s* jjll*- 
which occasioned the dreadful explosion ® 
Colliery ; but in the present case, this destrii^^^^j,^ j> 
instead of being pent up in tlie bowels of the 
companies the water in its passage to the surface. 
BROSELHY SPRING. 
ui. well, at )7j[ 
the month of J”! ’ni?'*' 
noise in 
been a remarkable thunder-stofm-^^^,,j|;ef|j 
persons who resided in die vicinity having been 
in their beds by this loud and rumbling noise> ^ 
This celebrated boiling spring, 
Shropshire, was discovered in 
It was first announced by a terrible 
there, havinsc 
proceeding to a bog under a small hill, about 
yards from the river Severn, perceived a •'’n''P'lf.j,(ftillj. 
motion and shaking of die earth, and a little bn' ' 
They took a spade, nnt ^ 
the water immediateb 
water through the grass. 
up a portion of the earth, uic waiei uuuicu.-- . 
to a great height, and was set on fire by a capn^ ijcp 
was presented to it. To prevent the spring , prot'^ 
destroyed, an iron cistern has been placed over 
with a cover, and a hole in the centre, dirough 
water may be viewed. If a lighted candle, or 
jiubstance, be presented to diis aperture, the 
takes fire, and burns like spirit of wine, coit 
do so as long as the air is kept from it j but on 
the cover of the cistern,' it quickly goes out. 
boiling and ascent of the water 
more obviously the result of hydrogen gas, or 
■jit^han ia the preceding instance of Wigan 
of this 
HOT SPRINGS OF ST. MICHAEI- u' 
In the eastern part of this island, or one 
round deep valley surrounded by high mountains, ‘ 
many hotsprings ; but the most remarkable is tha*^ ^.;ii 
Caldeira, situated in the eastern part of tlie 'j' 
small eminence by the side of a river, on 
about thirty feet in diameter, where die watei 
boils with prodigious fury. A few yards distab 
