THE NEW ENGLAND STATES. 69 



MASSACHUSETTS. 



BTJRNHAM SPRING. 



Misc. Div. No. 4833. 



Gases. 1 



CO 



Carbon dioxid (free) 7. 1 



Carbon dioxid (set free from bicarbonate upon evaporating to dryness) 5. 2 



Hydrogen eulphid 



Sanitary analysis. 



Parts per million. 



Ammonia (free) Trace. 



Ammonia albuminoid 0. 03 



Nitrogen as nitrites Ft. tr. 



Nitrogen as nitrates 2. 50 



Oxygen required 07 



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 



Burnham Spring is situated at Methuen, Mass., and is owned and 

 operated by R. P. Burnham. The spring was visited November 29, 

 1907, samples being obtained for examination. The flow was said to 

 be approximately 3 gallons per minute, at a temperature of 47 at the 

 holder. The chemical analysis shows this to be a moderately miner- 

 alized, calcic, sodic, bicarbonated, muriated, nitrated water of the 

 alkaline-saline type. The hypothetical combination indicates that 

 approximately 37 per cent of the salts in solution are the bicarbo- 

 nates of calcium and iron, 15 per cent are sodium nitrate, 9 per cent 

 sodium chlorid, and 11 per cent calcium sulphate, with smaller 

 amounts of the chlorids of calcium and magnesium. The sanitary 

 analysis shows a small amount of albuminoid ammonia, faint traces 

 of nitrites, and high nitrates, with an absence of bacteria. No adver- 

 tised mineral analysis could be obtained for purposes of comparison. 



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



