66 MARKET DAIRYING 
Cream Samplers. While an aliquot sample is neces- 
sary only where composite samples are made, samplers 
taking an aliquot sample, like the Scovell, McKay and 
Michels, have the further advantage of securing a more 
accurate sample when the cream is not thoroughly mixed. 
These samplers take a uniform sample from the top to 
the bottom of the cream in the can. The “milk thief,” 
which also takes an aliquot sample, does not take as satis- 
factory a sample when the cream is not thoroughly mixed. 
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Fig. 25.—Michels sampler. Fig. 26.—McKay sampler. 
McKay Sampler. This consists of two tubes, one of 
which slides into the other. One side of each tube is 
open so that the cream enters along the entire side of the 
