190 TESTIMONY OF EGBERT OGDEN DOREMUS. 



reading of the lactometer was correct, or the milk was pure or 

 impure. 



The COURT As to the quantity of water in it ? 



Mr. LAWRENCE Yes, sir. 



The COURT We cannot tell that the police regulations of Paris, 

 or the department having control over the sales of milk think it im- 

 portant to protect the public by telling what amount of cream, the 

 milk contains. This ordinance does not provide for anything except 

 ascertaining, so far as we are trying the question, except the pro- 

 hibition of keeping for sale watered milk. 



Mr. L.TWRENCE In the beginning of this case your Honor will 

 recollect that for a long time there was a question whether the 

 Board of Health intended to present the analysis of this particular 

 milk. It has been admitted in this case and other cases that the 

 Board of Health very often does take samples and make analyses ; if 

 it is necessary in one case why is it not necessary in another case ? 



The COURT If this can be done in a reasonable time you may go 

 on. 



Mr. PRENTICE I stated, your Honor, that we should try this 

 case on the lactometer ; I said in cases of doubt we used analysis. 



Dr. DOREMUS I propose, your Honor, to start this experiment, 

 and, if your Honor will permit my son to stand by and see that the 

 heat is regulated ; your Honor, and gentlemen of the jury, this is a 

 sample of milk I obtained from an Alderney cow myself ; I will 

 place a dessert spoonful of it, mixing it carefully first, in a little 

 platina vessel, which vessel, we will suppose, has been weighed 

 beforehand ; I would like to impress the jury as to the quantity ; 

 we use but little ; here is a little milk poured in, we will suppose to 

 have previously weighed the vessel ; our platina dishes are all 

 weighed ; we have a record of their weights to show if they lost 

 anything ; we will place a spoonful in this; we will suppose it is care- 

 fully weighed ; we merely warm it and let it discharge the water ; 

 we do this over a pan of water ; to a second sample I add a little 

 pure white sand ; weigh the dish and then weigh the sand ; here is 

 a little pure sand thoroughly dry ; to this we add another spoonful 

 of milk. 



Q. Why do you use the sand, Doctor ? A. I will explain. If 

 we wish quickly to evaporate, we employ some solid, such as sand, 



