200 TESTIMONY OF ROBERT OGDEN DOREMUS. 



I would ask your Honor's attention to the phrase " certain limits," 

 and I will ask also to introduce some other remarks by the same au- 

 thority, Yoelcker. 



Q. I will ask you, in this book by Tardieu in the edition sub- 

 sequent to that from which I understand you quoted which was the 

 edition of 1854? A. I believe it was. 



Q. In the edition of 1862, do you find this sentence as trans- 

 lated : " In one word the frauds marked by the lacto-densimeter are 

 certain, but it is far from indicating all the frauds and it is not 

 susceptible of- general application ;" now sir, will you be good 

 enough to read that passage ? A. There is nothing remarkable 

 about that ; I accept it as you read it ; that is so, it is stated here. 



Q. I will ask you has there been a late treatise on the subject 

 of milk by Charles Marchand, the son of Professor Marchand, who 

 is mentioned in the book of Quevenne, which you have cited ? A. 

 There has. 



Q. He is an authority ? A. He is, sir. , 



Q. And will you see if he has stated on page 97, of this book, 

 this : " And every time that we shall meet milk whose density shall 

 be lower than 1.030 at the temperature of 15 degrees Centigrade, 

 and which shall contain less than 30 gr. of butter and 50 gr. of lac- 

 tine, we shall affirm with certainty and without fear, that the milk 

 is falsified " ? A. I should claim the right to read all the books I 

 referred to ; I will show half a dozen of strong antagonistic author- 

 ities in favor of one the others will offer to sustain that. 



Q. Dr. Doremus will you tell me how, by analysis, you deter- 

 mine the amount of adulteration by water, or in other words the 

 amount of added water ? A. I will, sir ; I would add to the milk 

 rennet. 



Q. I will not ask the method ; what shall be the determination 

 of it ? 



(Objected to ; objection sustained.) 



Q. Dr. Doremus, will you tell me if you determine the amount 

 of water added to milk in testing its specific gravity, or whether you 

 simply determine the amount of water in the milk which you test ? 

 A. Simply the amount of water present in the milk ; by that 

 method it is impossible to tell whether it has been there or not. 



Q. By which method ? A. By the method you refer to, specific 



