cattle clubs, a detailed report over his signature and affidavit. This 

 record after being verified, endorsed and copied will be forwarded to 

 the club. The station, however, reserves the right of using the data 

 if deemed advisable. The supervisor shall submit an itemized state- 

 ment of time and expenses at each place, also breakage and nuinber 

 of records sent in. 



g. In case of long tests, supervisors will be changed every thirty 

 days if deemed advisable. 



THE TESTING OF SAMPLES. 



1. Each sample* must be tested in duplicate by the Babcock test; 

 the separations must be clean (free from curd and charred material) ; 

 and no variations in excess of o.io per cent, shall be allowed. 



2. In a seven day test when any of the milk or a test sample is 

 accidentally lost, the average of the corresponding milkings during 

 the other six days shall be substituted for the missing weight or test, 

 but such results must always be reported as estimations. 



3. With all tests of a week or more duration, a seven day com- 

 posite sample shall be taken, when required, by means of a sampling 

 pipette (i c. c. for every pound), preserved with bichromate of potash 

 and forwarded in a full bottle to the station by prepaid express. 

 Accompanying the sample shall be a statement of the total amount of 

 milk and of fat produced during the seven days represented by the 

 composite. Results by the station's test and by the inspector's data 

 ought not to vary more than 0.15 per cent. 



ADDITIONAL RULES WITH THE CHURN TEST.t 



1. In case the churn test is employed in addition to the Babcock, 

 milk samples of the same amount must always be taken so that the 

 loss of fat in the samples can readily be calculated from the total 

 weight of the samples and the average percentage of fat. 



2. The skim milk should be weighed daily, carefully mixed and a 

 composite taken by means of a sampling pipette. 



*In case of the Guernsey yearly tests it is only necessary to test a composite of the days 

 milking which must be taken by means of a sampling: pipette. 

 tConfirmed Butter.Test. A. J. C. C. 



