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 Bottles 34 



Milk-Measuring Pipette 35 



Greiner's Automatic Pipette ... 37 



Wagner's Pipette 37 



Acid-Measure ^ . . . 37 



Acid-Burette and Stand 38 



Automatic Burette .... : . ...... 38 



Steam-Turbine Tester . 39 



Hand-Tester 39 



Small Hand-Tester 40 



Electric Centrifuge 41 



Hydrometer for Testing Strength of Sulphuric Acid 44 



Milk-Bottle Tester . 49 



Testing Accuracy of Milk-Bottle A 49 



Burette and Support . , ...,... 52 



Waste-Jar for Emptying Test-Bottles ...... 53 



Test-Bottle Rinser . , 54 



Test-Bottle Draining-Rack 54 



Farrington's Bottle-Cleaner Bottle-Holder Empty . 55 



Farrington's Bottle-Cleaner Bottle Holder Immersed 56 



Farrington's Bottle-Cleaner Bottle-Holder Draining 56 



Correct Way of Holding Pipette and Bottle ... 59 



Wrong Way of Holding Pipette and Bottle ... 60 



xi 



