LIST OF ILLUSTRATIONS 



Frontispiece — Babcock Flask, showing fat in neck. 



Fig. 

 i General Shape of Bacteria 



2 The Constituent Elements of Milk . . . follows 

 Sketch A — Two Methods of Ventilating a Dairy Barn 

 Sketch B — Method of Ventilating a L,ean-to Stable 

 Sketch C — Section of the Cow Stable at the Wisconsin Ex 



periment Station 

 Sketch D — Showing Rutherford System of Ventilation 



3 Cow Tail-holder .... 



4 Good Type of Milking Suit and Pail 

 ,5 Iron Milking Stool 



6 Milking Stool .... 



7 The Gurler Milk Pail . 



8 A Recent Improvement of the Gurler Pail 



9 Modification of Stewart's Milk Pail 



10 Stadmueller Covered Pail 



1 1 The North Covered Pail 



12 The Trueman Covered Pail 

 Revolving Dairy Filter 

 Metal Frame on which Milk Pails are Set 

 The Conical Cooler 

 The Star Cooler 



i3 



14 

 15 

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17 

 18 



19 

 20 

 21 

 22 

 23 



Tubular Cooler . 

 Star Milk Cooler 

 Star Milk Cooler 

 Star Milk Cooler 

 Trap Milk Strainer 

 Covered Milk Cooler 

 Parts of Cooler . 



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