400 
SPRINGS AND WELLS. 
The evolution ol azotic gas is a proof that tli6 
Bath waters is owing to a particular decomp^’^!|jj, 
takes place within the bowels of the eartl). 
heat of these waters, is It 6® of Fahrenhei^* 
that of tlie mineral waters of Carlsbad, io 
cends to 1 65®. pijV ^ 
Beciprocatino fountains, or sprin®®’ , 
cited among tlie most curious phenomena of 
irregularity of flow is not uncommon in boH'Or ^ 
but there are other springs which evince a 
and reflux almost as regular as the tides of the . 
die®*# 
' il 
changes, it will be seen, frequently occur 
Bi a day, or even in an hour. They are ascribe 
causes, either subterraneous, or superficial ; hub 
asr'- 
springs and lakes of this description have been , 
beneath, througf^^^ ji 
to communicate with others 
apertures of various diameters, 
which serve 
carry off the waters, and to supply them afresh' ^ 
cases the flux and reflux of the upper hean , 
must, necessarily, depend on the state of jiiH' 
and the causes which alternately augment nn^ ,f 
the latter, must produce a similar effect on tlm 
Paderborn spring, in Westphalia, disapp' 
eat® 1 
twenty-four hours, returning constantly, aft^® , lo 
hours, with a great noise, and so forcibly 
three mills at a short distance from its sourcC' 
- . .... * 
bitants call it the lolderhorn, that is, the boistcrn'^jplr'^ 
Lav-well spring, near Torbay, is about f‘'Vi 
five in breadth, tind nearly six inches deep. ^ ^ if (f; 
reflux, wlwch are verv visible, are nerfbrin®,, 
two minutes ; 
In 
are very visible, are pern 
when tlie spring remains at ’■ 
for the space of about three minutes. A’(/ 
ebbs and flows twenty times within the hn'^'j ,|ii 
►.At. 
as the water begins to rise, many bubbles 
the bottom; but on its falling, the bubbh^®pio^ 
-GiGGLESWICK SPRiMrj in the \W’S 
■ /t 
ceases. — Ijiggleswick spring, in the 
Yorkshire, lies at the foot of a hill of 
Giggleswick Scar. Its reciprocations are 
with respect to duration and magnitude, tp® so(''‘ 
time between any two succeeding flows beins^pjt ' . ■ 
greater, and at other times less, insonn'cn 
standard of comparison cannot be formed. 
