ILLUSTRATIONS 



PAGE 



The Original Babcock Tester Frontispiece 



Composite-Sample Jars 25 



Rack for Composite Samples 26 



Sampling-Dipper 27 



Scovell Milk-Sampler 27 



Equity Milk-Sampler 27 



Milk-Testing Bottle 34 



Milk-Measuring Pipette ........... 35 



Greiner's Automatic Pipette 36 



Wagner's Pipette 36 



Acid-Measure 36 



Acid-Burette and Stand . 37 



Automatic Burette 37 



Steam-Turbine Tester 38 



Hand-Tester 38 



Small Hand-Tester . . 39 



Electric Centrifuge 40 



Hydrometer for Testing Strength of Sulphuric Acid 43 



Milk-Bottle Tester 46 



Testing Accuracy of Milk-Bottle 46 



Burette and Support 48 



Waste-Jar for Emptying Test-Bottles 50 



Test-Bottle Rinser 50 



Test-Bottle Draining Rack 51 



Farrington's Bottle-Cleaner Bottle-Holder Empty . 51 



xi 



