ON THE CIRCULATION OF UNDERGRODND WATERS. 75 



8. Very hard from carbonate and sulphate of lime. This water is not pumped into 

 the boiler, but only used for condensing the steam, and the hardness is of no conse- 

 quence. It is quite free from impurity. 



Foet. 



9. fSoil I 



Drift beds . . .J Upper boulder clay .... 5 



I. Lower boulder clay .... 9 



„ T' 1 /■ Upper Keuper marls . . . -"l o- 



Upper Keuper marl . [n l!.-TwoVyp-''um beds yielding water/ ^'^ 



I Keuper shales with gypsum, A . .16 

 Upper Keuper sandstone < Middle sandstone, B . . . .14 



(_ Lower shales, C 11 



Red marl, with four gypsum beds, and thin beds of white sand- 

 stone, all yielding water 40 



Total . . . .151 



9a. All the sandstone beds and the gypsum. 10. There may be. IX. Yes. 

 12, 13. None. 14. No. 15. None are known. 16. For every gallon from the well 

 before boring, they have now three gallons after boring. 



Messrs. Davis ^ Co., Manufacturers, Leicester. 



1. London Road. la. Uncertain. 2. 220 feet. 3. Well, 70 feet deep, C feet 

 diameter. Bore, SO feet deep, 6 inches diameter. 3a. None. 4. 20 feet. 5. In- 

 crease 1.50 per cent, since boring. 6. Not known. 7. Yes. 8. Hard from carbonate 

 and sulphate of lime, but used only for condensing purposes. 



Feet. 



9. Drift Drift beds 20 



Upper Keuper marl . . Upper Keuper marl, with gypsum beds 2."> 

 Upper Keuper sandstone . Upper Keuper sandstone and shales . 45 

 T-, , , r Red marl, with gTOsum beds, and thin 1 „rt 



Red marl . . . .| beds of sandsVone . . . .)_^ 



Total . . . .150 



10. There may be. 11. Yes. 12-14. None. 15. None known. 16. Increase 

 oE water more than 150 per cent, entirely through the boring. 



Messrs. Haven ds Co., Manufacturers, Leicester. 



1. Wharf Street, Leicester, la. October 1887. 2. 186 feet. 3. Bore, 120 feet 

 deep, 7 inches diameter. Bore, 84 feet deep, 6 inches diameter. Total depth, 204 

 feet. 4. 20 feet from the surface. 6. Yes. 8. Very hard from carbonate and sul- 

 phate of lime. This water is not pumped into the boiler, but only used for condensing 

 the steam, and the hardness is of no consequence. It is quite free from impurity. 



9. Boulder clay . . . Drift and soil .... 



TT -rr if Uppcr Kcupcr marls 



Upper Keuper marl • | Upper shaly sandstone, A . . 

 _ _ , , f Middle sandstone, B 



Upper Keuper sandstone | ^ower shaly sandstone, C . . 



fGypsum bands and red marl . 

 Red marl . . .s Red marl, with bands of shaly sand 



(, stone 



Ffct. 

 8 

 25 

 30 

 20 

 22 

 69 



I 30 



Total . . . .204 



10. Probably. 11. Yes. 12-15. None known. 16. An abundant supply of 

 water is found. 



Lincolnshire. 

 Collected hy C. E. De RAXCE/ro7n. Mr. James Pilbrow, M.Inst. C.E. 



1. Bourn, Lincolnshire, Waterworks, in higher part of the town. la. 1856. No. 

 2. 3. Bore-hole, 4 inches diameter ; 94 feet in depth. The last 2 feet being 



