432 Bureau of Farmers' Institutes. 



us he is inclosed in a slimy, sticky jacket. Hang together for the 

 same reason that a fly sticks to flypaper, and when enough are 

 present in any liquid, that liquid becomes viscid. When I lift 

 this stringy milk, the bacteria in it are arranged in the position 

 seen in the chart; the cohesion of the sticky coverings being suffi- 

 cient to maintain the weight of the liquid. 



These bacilli are naturally unoffending. They cannot walk, 

 fly or jump into milk; victims of ciroumstances, and these 

 circumstances are under the control of the dairyman. I want to 

 emphasize the fact of the innocent intent of these bacteria; they 

 never get into milk unless they are helped there. 



Conditions in average concern experiences trouble. Small milk- 

 house. Milk brought in and strained, bottled. Cooling cans in 

 ice water high outside ; splashes in fine ice ; lifting out cans ; 

 perhaps don't scald; dirty strainers; slight dust; rinsing pails at 

 night, 



What bacteriology reveals: Bacteria in the milk; bacteria in 

 the water in tank; bacteria in village water supply, sometimes; 

 flooi' dust, how found ; cans standing open; strainers, how found; 

 air-stand sterile milk; poor can washing; innocent dealers. 



What to do. — Scald well, boil; cover cans in the tanks; potas- 

 sium bichromate in tank ; supervise the milk production carefully 

 or produce your own ; 5 per cent, oil vitriol on floor. 



Recapitulation. — Germs in water; may dry up on floor and blow 

 in; dirty utensils; careless rinsing of pails at night; impossible 

 to foresee all conditions; must work out own solution. 



T invite your correspondence in regard to trouble, for my knowl- 

 edge concerning it is not yet burdensome. 



