"272 Analyses of Water — Dodge. 



the "raison d' etre" of the state board of health. But, underlying 

 all, is the sanitary duty of individual and family, which in the 

 long run, determines that of the community, and the character of 

 its performance. To go into the details of the whys and hows of 

 the duty of the io dividual and family, though of the utmost im- 

 portance, is desirable, but impossible now. It would take a course 

 of lectures, illustrated from large experience, and with the aid of 

 the microscope, test tube, lantern and diagrams. It is not needed 

 to clinch my argument of to-night. Appealiog to the experience 

 of all who hear me, and in the light of what has been said, I claim 

 it to be proved that the duty of the citizen, as an individual, or as 

 head of a family, is: 1st. To recognize his duty as a health offi- 

 cer, to learn it, and to do it. 2d. That this will compel him to 

 learn his duty, as a citizen, to the local board of health and to the 

 state board. He will take a business interest in their personnel, 

 work, and efficiency, which they need. I think of nothing more, 

 available here, to strengthen my appeal, in the name of the sanitary 

 forces of the whole population. Come up to the duty, every one, 

 and do your share of the work of public health which is to pro- 

 long the life and increase the efficiency and happiness of every man, 

 woman and child of our commonwealth. 

 December 4, 1888. 



[Paper DD.^ 



ANALYSES OF WATER USED Iiq" A BOILER EMPLOYED FOR HEATIIs^G A 

 PUBLIC BUILDING IN ST. PETER, MINN. — J. A. Dodge. 



Two samples of water were sent, one being a sample of the 

 water as supplied to the boiler, the other a sample of water run 

 off from the boiler (circumstances not stated). 



1. Analysis of the mineral matter found in the water as 

 supplied to the boiler: 



Sulphate of lime, Ca SO4+2H2O, 247.2 parts per million. 



Carbonate of lime, Ca CO 3, 251.0 



Carbonate of magnesia, Mg CO3, 135.3 



Sulphate of magnesia, Mg SO 4, 27.6 



Sulphate of soda, Nag SO4, 185.0 



Chloride of sodium, Na CI, 88.0 



Undetermined, - - 11.0 



895.1 



