COMPOSITE SAMPLING 



53 



I 



Fig. 16. Milk 

 sampler. 



Fig. 18. 

 Milk thief. 



Fig. 17. 

 Scovell 

 sampling 

 tube. 



where children, and others unfamiliar with their poison- 

 ous properties, can not have access to them. 



The bichromate of potash and corrosive sublimate can 

 be purchased in tablet form, each tablet containing enough 

 preservative to keep a pint of **ulk sweet for about two 



