lo JuLV. 191 T.J Tin Bahcoch Tcsitr mi iJu Farm. 



435 



with a gentle rotary motion. The .sample .should not be shaken violently 

 at anv time or the cream may be churned, and this would make the testing 



iliflifuit. 'I'hi- .sani|)lr nui>i !«• krpt lightly (•(.>rkcil. 'I'hf three drops of 

 lormalin added to tlie first l<'t shouM ke<*p the sanii)le .sw<ft until it is con- 

 Aeiiiciit to makf tin- tist. 



