AND GEOLOGICAL RELATIONS OF CERTAIN HOT SPRINGS. 
593 
B. Specialties of the Springs. — The number and copiousness of the springs of Bag- 
nkres astonish and almost confound us. They are, unlike most of the other Pyre- 
nean springs, saline, and not sulphureous, and some are nearly pure. Relinquishing 
at once the idea of examining all the multiplied private thermal establishments, I 
confined myself to the examination of those contained in the great public baths (Bains 
Marie-Therese). These have been very recently constructed with great care, and at 
a vast expense. Though we can in no case arrive at the exact source, yet the solidity 
of the constructions leaves room to hope that they may be left in their present state 
for many years. Whilst the immense discharge of the principal springs probably 
renders any change of temperature during the passage from the source wholly inap- 
preciable, it is important to add that in no case did any reservoir intervene between 
the origin and the place of observation. The springs belonging to the great esta- 
blishment are, 
1. Source Dauphin. This issues from the rising ground immediately behind the 
building, and is conveyed by a stone conduit for a considerable distance before it 
can be observed. The descent is rapid, and the rush impetuous, so much so as to 
render observation a little difficult. 
2. La Reine. This issues under circumstances quite similar to the last. They are 
both exceedingly copious, and the temperatures were taken in the conduits. 
3. Roc de Lanne. Observed in a stone conduit only a few feet from where it rises ; 
also behind the building. Moderately copious. 
4. Source des Yeux. Taken at the cock in the bath, at which it arrives by a long 
stone conduit. Quantity of water small. 
5. St. Roch. Also small, observed in a stone conduit some yards long, behind the 
baths. 
6. Foulon. Rises about 14 feet by a vertical wooden pipe from the spring to the 
bath, where its temperature was taken. Flow moderately large. 
C. Temperatures. — Bagn&res is 1823 feet above the sea (Ramond). Temperature of 
an enormous spring issuing from the limestone at Medous, at a mile from Bagneres, 
(so copious as immediately to turn a mill-wheel,) 51 0, 5 Crichton = 50*7 reduced 
(August 7). The temperatures of the hot springs were on the 6th of August 1835, 
the following : 
Troughton. 
Reduced. 
Le Dauphin . . . 
. . . . 119-1 
9 
o Cft 
(“i 
La Reine ... 
. . . . 114-1 
114-0 
Roc de Lanne . . . 
. . . . 115-3 
115-2 
Source des Yeux . . 
... 89-5 
89-4 
St. Roch .... 
. . . . 109-5 
109-4 
Foulon 
. . . . 93-2 
93-0 
MDCCCXXXVI. 4 G 
