130 



REPORT — 1875. 



feetin depth; boreTOfeet; diameter of shaft 6 feet, ditto of bore 4 inches. 4. 20feet 

 before reduced by pumping to 8 feet ; restored in 10 hours. 5. 30,000 gallons. 

 6. Yes ; in January and February rises occasionally 20 feet. 7. After continuous 

 rain level is aifected and water rises 3 or 4 feet. 8. Analysis by Voelcker appended. 

 9. Red Sandstone. 10. Yes. 11. No. 12. No. 13. No. 14. No. 15. No. 



Composition of two samples of Water sent by Dr. Symes Saunders, County Lunatic 



Asylum, Exmiuster. -^^r^ter from 



Well- tap in 



An imperial gallon on evaparation left residue, dried at 260° grs. ' grs. 



Fahr. ...: 16-61 1695 



An analysis of the residue gave by direct determination : — 



Organic matter and loss in heating 1'39 1"40 



Oxides of iron and alumina, traces of phosphoric acid "24 "25 



Lime 311 3-24 



Magnesia : 1-46 1*49 



Sulphuric acid '72 "74 



Chlorine 2-20 2-21 



Soluble siHca ,- -90 -81 



Alkalies and carbonic acid (not determined separately) .... 6'59 6-81 



Total residue per gallon 16-61 16-95 



Oxidizable organic matter per gallon -176 "272 



According to the usual mode of combining the constituents of waters, the composi- 

 tion of the two samples may be represented as follows : — 



General Composition of two samples of Water in use in the Devon County Lunatic 



Asylum, Exminster. 



An imperial gallon contains in grains : — Well-water. Water from Tap in 



_ . . No. 5 Ward. 



'Organic matter and loss in heating 1-39 1*40 



Oxides of iron and alumina and traces of phosphoric acid "24 -25 



Sulphate of lime 1-22 1-25 



Carbonate of lime . . . : . ; ......;.. 4-66 4-87 



Carbonate of magnesia 3-00 3-11 



Chloride of sodium ; ....:..........,......... 3-62 3-63 



Carbonates of potash and soda 1-52 1-63 



Soluble silica -90 -81 



10-61 10-95 



•Including oxidizable organic matter "176 -272 



Augustus Voelckee, Ph.D. 



11 Salisbm-y Square, Fleet Street, 

 Not. 2nd, 1866. 



Mr. Henry John Carter, Budleigh-Salterton, Devon. 



1. All the wells at Budleigh-Salterton are in the New Red Sandstone above the 

 great Pebble-bed. 2. Do not know. 3. Depth of our own well 37 feet ; diameter 

 3 feet inside the revetment at the top : I know nothing of any other. 4. Do not 

 know ; water drawn up by bucket three or four times a day ; bucket cylindrical iron 

 15i by 13^ in. measm-ement. 5. Do not know ; there is always 4-6 feet of water in 

 our well. 6. Do not know ; well about 150 years old. 7. Do not know ; must be, 

 I should think, 40-50 feet above either at the bottom, with the strata inclined south- 

 east. 8. No peculiarity ; comparatively pm-e compared with that from the land 

 spring, which is so hard that it is only used for washing potatoes and the like. 



9. New Red Sandstone ; drift variable "in thickness, under 10 feet I should thinlv. 



10. Yes, at our house for 6-8 months in the year. 11. Entirely kept out, I believe. 



