340 OLIVER: MINERAL SPRINGS OF THE WEST RIDING. 
Room from the Bogs-Field, the Yoredale Limestone is seen in the 
brook to dip at a low angle in an easterly direction, and at one point 
E.N.E. Some twenty yards to the south-east of these exposures is 
a remarkable group of eig-ht sulphur wells in the cellar of the Royal 
Pump Room — distant from each other but a few feet, yet all differ- 
ing in their proportions of salines and sulphides. The most important 
and best known of this group is the Old Sulphur Spring, which issues 
into a basin through fissures of the Yoredale rock and shales, 
shelving in a south-easterly direction, and but slightly inclined. Mr. 
Hayton Davis tells me the shales at the bottom of the other wells 
also dip south-east, but with varying degrees. The Old Sulphur 
Spring is the type of the whole of this group ; for all these wells, 
with the exception of one or perhaps two, are strong in sulphur and 
in salts. And some twenty yards to the eastward of these issues is 
another strong sulphur well (Thrackwray's pump). The average 
proportion of salt in all these issues is over one per cent. — an amount 
as large as that found in several British brine springs. Within one 
hundred yards due east of the Old Sulphur Spring, is the strong 
Montpellier Sulphur Well, which yields a water almost identical in 
strength and composition. 
Th^ Montpellier and the Chloride of Iron Waters flow from the 
dark blue shale that overlies the Yoredale Limestone. The dip of 
the bedding is N.W., with inclinations that vary from 20° or 30° in 
the Montpellier Gardens to very nearly perpendicular at the bottom 
of the Chloride of Iron Well. The strong dip of the shales at the 
latter site distinguishes it as the most disturbed portion of Low 
Harrogate. 
(c) The Bilton and Starheck issues. — If a line be drawn in an 
exactly north-easterly direction from the Old Sulphur Spring, it 
will, at the distance of 2^ miles, intersect Bilton Banks, on the 
declivity of which is a natural issue of sulphur water.* 
The Millstone Grit, through which I believe the water springs 
* It should be noted that when the drains were being laid near the Old 
Dragon Hotel, High Harrogate, an issue of Sulphur water was struck. This 
point is on the north-east track from the Old Sulphur spring to the Bilton spring. 
In the railway cutting midway between the Dragon and Bilton Banks, there are 
two good anticlinal exposures — close together — of Millstone Grit. 
