THE NEW ENGLAND STATES. 91 



RHODE ISLAND. 



GLADSTONE SPRING. 



Misc. Div. No. 2423. 



Gases. 1 



cc 



Carbon dioxid (free) 6. 9 



Carbon dioxid (set free from bicarbonate upon evaporating to dryness) 4. 5 



Hydrogen sulphid 



Sanitary analysis. 



Parts per million. 



Ammonia, free Trace. 



Ammonia albuminoid 0. 016 



Nitrogen as nitrites 000 



Nitrogen as nitrates 600 



Oxygen required 



Bacteriological data: 



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



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



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 



Gladstone Spring is situated at Narragansett Pier, R. I., and is 

 owned and operated by Miss Mary L. Robinson. The spring was 

 inspected December 5, 1907, samples directly from source being 

 obtained for examination. The flow was said to be approximately 

 50,000 gallons in 24 hours, at a temperature of 50 F. Chemical 

 analysis shows this to be a moderately mineralized, sodic, calcic, 

 bicarbonated, muriated, sulpha ted water of the alkaline-saline type. 

 The hypothetical combination indicates that approximately 37 per 

 cent of the salts in solution are in the form of the bicarbonates of 

 calcium and magnesium, and 36 per cent are present as chlorid and 

 sulphate of sodium and magnesium. The sanitary analysis shows a 

 very small amount of ammonia and nitrates, with an absence of bac- 

 teria, which indicates organic purity. No advertised analysis was 

 available for purposes of comparison. 



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



