338 OLIVER: MINERAL SPRINGS OF THE WEST RIDING. 
II. — Data Pertaining to the Issues of Mineral Water. 
The mineral waters which flow from the anticlinal may be 
grouped as follows : — 
1. Harrogate, Bilton, Starbeck, Harlow Car, Beckwith, andCrimple. 
2. Bolton Wood. 
3. Skipton, Broughton, Crickle, Langber, Elslack. 
4. Wigglesworth. 
5. Aldfield. 
Possibly there may be others which have escaped my observa- 
tion.* This list, however, does not include issues of chalybeate 
water which abound in a district hke this, where the formations are 
highly ferruginous ; it merely embraces those that are sulphuretted. 
1. The Harrogate Group of Mineral Waters. 
(See diagrams I. & II.) 
(a) The Bogs-Field Waters. — A small strip of ground — only 170 
yards long and 40 yards across — on the Bogs-Field is remarkable in 
affording the issues of over 30 different mineral waters, all of which 
save one have been reached by sinking wells to various depths. 
The exception to which I refer is the Strong Hospital Sulphur, 
which rises nearer the surface than the other sulphur waters, and is 
probably the principal, if not the only, natural issue of sulphur water 
in this area ; in this respect it resembles the Old Sulphur Well in 
Low Harrogate, and the Bilton spring, which are natural outflows.f 
For the most part the sulphur waters flow into the most 
central of this group of wells ; while the chalybeate ones are found 
mainly in the wells on either side (see diagram 1). The pure chaly- 
beates near the Magnesia Well resemble other similar waters of the 
district (such as the Tewit and John's Wells on the Stray), in the 
fact that they derive their ferruginous impregnation from compara- 
tively near the surface ; in fact all observations of these Bogs-Field 
waters have shown that the salines, and especially the sulphide, 
* Since writing the above, a friend has pointed out the existence of the 
Fooden Sulphur spring near Gisburn. It rises through the carboniferous 
limestone. 
f When studying mineral waters from a geological standpoint, we should, 
I think, distinguish between the natural outflows and the artificial outlets pro- 
vided by wells, for the former may illustrate some fact in nature which we should 
not overlook. 
