110 



arrived at the farm. Many ordinary foods, however, contain 

 traces of boric acid, and hence minute traces will often be found 

 in milk. There is nothing new in finding minute traces of 

 boric acid in most common objects, many investigators have 

 noted this fact before. 



TABLE XL VII. 

 EXPERIMENT N. 



Date. 

 June 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 

 26 

 27 

 28 

 29 

 30 

 July 1 

 j> 2 

 3 

 4 

 i 5 

 6 

 7 

 8 

 9 

 10 

 11 

 12 

 13 



I* 



15 



16 



17 



18 



19 



Lot I. 



Boric 

 meal-fed. 



Ibs. 



Boric aciii 

 in milk. 



parts 

 per million. 



1 

 1 



1 

 * 



1 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 



Lot II. 



Boric 

 meal-fed. 



Ibs. 



Boric acid 

 in milk. 



parts 



per million. 

 2 



1 



Broken in transit. 



