de range : underground waters in lincolnshire. 25 
Gainsborough. 
Boring made by Messrs. E. Timniins & Sons, Bridgewater 
Foundry, Runcorn, for the Local Board, at the recommendation of 
myself, the site is six miles from the outcrop of the New Red Sand- 
stone. 
Feet. 
725 Keuper marls, with much gypsum to 350 feet ... 725 
1201 New Red Sandstone, with red and white pebbles, at 
750 feet and 960 feet in depth ... ... 375 
The well is 58 feet deep, the bore-hole is lined with cast iron 
tubes of 19 inches internal diameter to 140 feet, of 15 inches to 212 
feet, of 12j inches to 335 feet (of wrought iron), of 10J inches 
diameter (wrought iron), to 737 feet, and 10 inches internal diameter 
(wrought iron) to 1201 feet. 
The water contains 32*20 grains per gallon of solid residue, at 
212 F, and contains of combined chlorine 1*40 grains per gallon. 
Its hardness on Clarke's scale is 2576, of which 16'31 is permanent ; 
the water in the boring is mixed in the well with some upper waters, 
to which its hardness is due. This mixture was not due to any 
defect in the work done by the contractors under their instructions, 
and there is every reason to believe that, if the whole of the water 
were derived from the New Red Sandstone it would be found much 
softer. The quantity pumped is about 15,000 gallons per hour. The 
character of the underground waters from the New Red Sandstone 
of this district, where no admixture has taken place, is well seen in 
the analysis accompanying the following particulars ot a recent 
boring at Worksop. 
Worksop. 
Hodsock Priory. Bored March, 1891. Surface 55 feet above 
Ordnance Datum. Depth of six-inch boring 94 feet. Permanent 
water level before pumping, three feet from surface ; after pumping 
150,000 gallons in 24 hours it fell to 18 feet below the surface, but 
recovered in a few minutes on stopping the pumps. 
The boring commenced in six feet of surface soil, and was then 
carried through the Lower Mottled Sandstone, with numerous thin 
layers of marls. Water occurred throughout the boring. 
D 
