TESTIMONY OF JOSEPH T. O'CONNOB. 161 



water be added to that milk without the lactometer falling below 

 100 ? A. Is the case supposed of milk standing at 120 gravity ? 



Q. Is it not a very common thing for milk to stand at 120 ? A. It 

 is not common for me with the use of the lactometer to find milk 

 standing at 120. 



Q. Do you not very often find skimmed milk stands at 120 ? 

 A. I do ; not very often ; I find considerable quantities of skimmed 

 milk, but the question asked me was as I use it. 



Q. Where have you made tests with the lactometer ; at what 

 place have you made tests of milk aside from tests in the country 

 and at milk shops in the city ? A. I have tested it at the labora- 

 tory of the School of Mines. 



Q. Anywhere else ? A. Not that I remember ; I hardly get the 

 drift of your question. 



Q. How many milk inspectors are there in the Board of Health? 

 A. Two. 



Q. Are you one ? A. Yes, sir. 



Q. Have you never tested milk with the lactometer at the rail- 

 road depots in this city ? A. Not in this city. 



Q. Do you know whether your associate has ? 



(Objected to.) 



Q. I understand you when milk stands at a high gravity, say 

 120, that a considerable quantity of water may be added to it 

 without bringing it below 100, may it not ? A. A certain amount 

 of water. 



Q. About how much? A. That would depend entirely upon 

 some other conditions, on some other considerations. 



Q. Do not you think the application of the lactometrical test 

 furnishes an incentive to milkmen to add water so as not to bring it 

 below 100 ? 



(Objected to.) 



A. I have no opinion about it. 



Q. Cannot 15 per cent, of water be added to milk which, when 

 pure, is 120 without bringing it below 100 ? A. It might, sir. 



Q. Will analysis detect the addition of that water ? A. If you 

 would adopt a standard from which you start in your analysis. 



Q. Will analysis detect the addition of that water ? A. Not 



