THE NEW EARTH 



Along with this has gone a diffusion of 

 information as to the care of the herd. At the 

 Storrs Station in Connecticut, tests have been 

 made with a covered pail which admits the 

 milk through wire gauze of fine mesh, to which 

 are added layers of cheese-cloth. Prevention 

 of impurities is thus secured. The amount of 

 dirt in the milk from the covered pail was only 

 thirty-seven per cent of that in the open pail ; 

 in other words, the cover excluded sixty-three 

 per cent of the dirt. In addition to this, by 

 the use of the covered pail, twenty-nine per 

 cent of the total number of bacteria and forty- 

 one per cent of the acid-producing bacteria 

 were excluded from the fresh milk. Where 

 the milk was drawn from the cow into an 

 open pail and then strained, the results were 

 by no means so satisfactory. In this connec- 

 tion, the filtering of milk as practiced in Eu- 

 rope is worthy of note. In Vienna, the filters 

 are large drums of sand through which the 

 milk passes, either being forced up through 

 the sand from the bottom, running out over 

 the top, or passing down through the sand by 

 gravity. While practically the entire milk 

 supply of the city of Vienna is filtered through 



198 



