Cream Testing. 79 



89. The Winton cream bottle. The cream-test bot- 

 tle devised by "Winton, 1 (fig. 32), has a neck of the 

 usual length, and of sufficient width to measure 30 per 

 cent, of fat. The scale of the neck is divided 



into parts representing one-half of one per 

 cent, each, but readings of a quarter of a per 

 cent, can easily be estimated. Such readings 

 of cream tests are sufficiently exact for most 

 commercial purposes, e. g., in creameries. 

 This form of cream bottle will be found very 

 convenient in making tests of composite sam- 

 ples of cream. 



Cream test bottles of a small bore are 

 greatly to be preferred to those with wide 

 necks (fig. 32), since they permit of accurate 

 readings to a quarter of a per cent. 



Other forms of cream-test bottles which 



will allow the testing of 50 or 55 per cent. 



FIG 32. 

 cream have been placed on the market dur- Thewinton 



ing late years by some manufacturers. These bottie m 

 bottles (so-called 9-inch bottles] have long necks and 

 require especially constructed, large and deep testers 

 (see fig. 25). These machines and accompanying bot- 

 tles have of late been adopted for cream testing in 

 many localities where farm separator cream is deliv- 

 ered to the creameries. 



90. The bulb-necked cream bottles (fig. 33) allow the test- 

 ing of cream containing 23 or 25 per cent, of fat, when the 

 usual quantity of cream (18 grams) is taken. The neck is 

 graduated from to 23 per cent., and in some cases to 25 per 



i Connecticut experiment station (New Haven), bull. 117; report 

 1894, p. 224. 



