PHYSICAL AND CHEMICAL EXAMINATION OF MILK 



143 



devised by Shaw and Eckles. This instrument differs from the 

 Queverine in having a longer bulb and a finer stem. The spaces 

 representing units are lengthened and the reading is therefore 

 more accurate than on the Quevenne lactometer. 



Fig. 35. Quevenne's Fig. 36. Spence's 



lactothermometer. New York State lacto- 

 thermometer. 

 (A. H. Barber Creamery Supply Co.) 



Fig. 37. Lactometer 

 designed for use in experi- 

 mental work (Bull. 134, B. 

 A. I.). 



The following table gives the relation of the Quevenne, 

 the New York Board of Health lactometers, and the specific 

 gravity : 



