DAVIS : MINERAL WEALTH OF HARROGATE. 
361 
r - 
show ^this interesting, and to myself unexpected, fact ; the sketch 
represents at the various depths indicated the proportion of solid 
constituents, also the iron present in the water, the difference in the 
amount of solids as it arrives at the surface of the borehole, and as 
I found it 4^ft. down is more than 100 grains, while on the other 
hand, the iron increases to nearly double as it approaches the surface. 
CHLORIDE OF IRON WELL. 
The quantities are in grains 
per gallon. 
^49-00 
Scale ^ in. to ft. 
The yield which I timed as the water rose from a depth of 18 
inches to 6 inches, is 3.6 gallons per hour, while on another occasion. 
I gauged it from a depth of 8 inches to 4 inches, the yield was only 
at the rate of 2 gallons per hour. 
These differences of strength increasing with the depth, would 
seem to point out that- the water according to its density exists in 
