166 



Testing Milk and Its Products. 



'^fkisislot is closed. The sampler is made 

 in two lengths, 21 and 18 inches, 

 and has been found very convenient 

 for sampling either milk or cream. 

 187a. e. Michels' cream-sam- 

 pling tube consists of a modified 

 Scovell sampler in a tin .jacket. It 

 was constructed by Professor John 

 Michels, late of North Carolina agri- 

 cultural college. This sampler ren- 

 ders possible an nccurate and rapid 

 sampling of any cream, regardless 

 of its richness and acidity, without 

 stirring the cream. 



188. f. Composite sampling with a 

 "one-third saii pie pipette." Milk is 



B^iQ. 58. The McKny ggmetimes sampled directly from the 

 sampler. ^ •' 



weighing can into the Babcock test bottle 



by means of a pipette hold- 

 ing 5.87 oc, which is one- 

 third the size of the regu- 

 lar pipette. This quantity 

 is measured into the test 

 bottle from three successive 

 lots of milk from the same 

 patron and the test then 

 made in the ordinary man- 

 ner. In this way one test 

 shows the average composi- 

 tion of the milk delivered 

 during three successive days 

 or deliveries. When this 

 method is adopted, as many 



test bottles are provided as „ „ -^ r,, x , .1, . , 



'^ _ Fig. 55. Test-bottle rack for use in 



there are patrons; there is no creameries and cheese factories. 



