Horace T. Brown — Boring at Straff ord-on- Avon. 



55 



Bore terminates in No. 32 at 



Summarizing the above details we have. 

 Upper Keuper Nos. 1-21 

 Lower Keuper Nos. 22-32 



Passage Beds (Marls and Sandstone) 22-25 

 Sandstones 26-32 



19 ft. 



804 



604 



200 



It. , 

 181 ft. J 



The whole of the Upper Keuper was perfectly dry, but water was 

 met with directly the Lower Keuper was touched at 604 feet. This 

 increased iu quantity as the boring penetrated further into the 

 sandstones, and a supply of 8,000 gallons an hour is now being 

 pumped, without any signs of exhaustion. The artesian head of the 

 water is considerable and is sufficient to afford a natural flow of 

 1,800 gallons per hour at a height of 50 feet from the surface. 



I here append an analysis of the water, and for purposes of 

 comparison have also added the analysis of the water of a town well 

 sunk in the Upper Keuper Marls. Bore Water Well in 



Lower Keuper. Upper Keuper. 

 (Grains per gallon.) 

 Sodium Chloride ... 

 Sodium Nitrate 

 Sodium Sulphate ... 

 Sodium Carbonate ... 

 ' Potassium Sulphate 

 Magnesium Sulphate 

 Magnesium Carbonate 

 Calcium Nitrate 

 Calcium Carbonate 

 Calcium Sulphate ... 



Silica 



Alumina 



Ammonia, free and saline ... 

 Ammonia, albuminoid 

 Oxygen, absorbed in three hours 



21-03 151-64 



(Parts per million.) 



0-10 0-085 



Faint trace 0-045 



0-18 0-029 



