3- The butter milk should be weighed, sampled, and if more than 

 one churning, a composite taken by means of a sampling pipette. 



4. The skim milk and butter milk should be tested in duplicate 

 by the Babcock test and no variation in excess of 0.02 per cent 

 allowed. 



5, The finished butter should be weighed and sampled immedi- 

 ately by slicing the entire lump (not prints) by means of a thin case 

 knife or spatula, and by taking small pieces (size of a walnut) from 

 various parts of the different slices. Great care should be exercised 

 to prevent loss of water. The sample, amounting to about one half 

 a pound, should be shipped to the station in a sealed Lightning fruit jar 

 by prepaid express. 



SPECIAL RULES. 



1. The Ayrshire and Holstein-Friesian Associations rule that a 

 yearly test shall not exceed 365 days and in one lactation period only. 

 The Guernsey Club insists upon 365 consecutive days. 



2. The Ayrshire Association and the Guernsey Club estimate 

 butter by increasing the amount of butter fat by i ; the Jersey Club by 

 j^'=j, (or divide the butter fat by .85) ; the Holstein-Friesian breeders 

 usually add ^. 



3. The Ayrshire Association reinburses the station for analytical 

 work and semi-yearly inspections, and the breeders pay the express 

 charges on all samples sent to the station as well as the entire cost 

 of seven day tests. 



4. The entire cost of seven day and yearly tests under the 

 Guernsey Club is met by the owners of the cows tested. 



5. The Jersey Club pays one-half the cost for time, traveling 

 expenses and affidavits on seven day and yearly tests and the owners 

 reinburse the club for the remainder including breakage, supervision 

 and clerical work. 



6. Under the rules of the Holstein-Friesian Association, the own- 

 ers pay the station direct for all expenses of the test and also the 

 cost of any ordered retest that does not corroborate the previous one. 



