THE NEW ENGLAND STATES. 35 



MAINE. 



KEYSTONE MINERAL SPRING*. 



Misc. Div. No. 2144. 



Gases. 1 



cc 



Carbon dioxid (free) 9. 2 



Carbon dioxid (set free from bicarbonate upon evaporating to dryness) 10. 9 



Hydrogen sulphid 



Sanitary analysis. 



Parts per million. 



Ammonia, free. 0. 00 



Ammonia albuminoid 1 . .00 



Nitrogen as nitrites 00 



Nitrogen as nitrates 20 



Oxygen required 6. 50 



Bacteriological data: 



Organisms per cc on plain agar after 48 hours at 37 C 2 



Organisms per cc on neutral red agar after 48 hours at 37 C 2 



Gas-forming organisms in 5 cc 



Gas-forming organisms in 1 cc 



Gas-forming organisms in 0.1 cc 



Gas-forming organisms in 0.01 cc 



Keystone Mineral Spring is located in East Poland, Me., and is 

 owned and operated by E. II. Pratt. The spring was inspected on 

 November 19, 1907, and samples taken from source for examination. 

 The flow was from 5 to 6 gallons per minute. Chemical analysis 

 shows this to be a moderately mineralized, calcic, bicarbonate water 

 of the alkaline type. The hypothetical combination indicates that 

 approximately 73 per cent of the salts in solution are in the form of 

 bicarbonates of calcium and magnesium, with 7 per cent of sodium 

 chlorid and 3 per cent of sodium sulphate. The sanitary analysis 

 shows an absence of free and albuminoid ammonia, and low nitrates, 

 which, with a low bacterial count, indicates organic purity. The 

 advertised analysis of this water is not reported in sufficient detail 

 for use in comparison with these results. 



1 At C. and 760 mm pressure in 1,000 cc of water. 



