The Australian War Memorial Collection. Test site
HERD TESTING. FINALLY THE SAMPLES OF MILK ARE REVOLVED IN THE BABCOCK TESTER FOR FIVE MINUTES AND THE BUTTER FAT CONTENTS OF EACH COW'S MILK IS RECORDED. (NEGATIVE BY C. BOTTOMLEY).
HERD TESTING. EACH COW'S MILK IS WEIGHED NIGHT AND MORNING ABOUT ONCE A MONTH, AND SAMPLES ARE TAKEN IN ORDER TO ASCERTAIN THE PERCENTAGE OF BUTTER FAT IN THE COMBINED MILKINGS. (NEGATIVE BY C. BOTTOM
HERD TESTING. BY MEANS OF THE BABCOCK TESTER MRS. HERD ASCERTAINS THE BUTTER FAT YIELD OF EACH COW IN THE PARTICULAR BRANCH OF THE HERD TESTING ASSOCIATION WITH SHE IS ASSOCIATED, AND THE RECORDS THUS
HERD TESTING. WHEN A SAMPLE IS POURED INTO A TEST TUBE SULPHURIC ACID IS ADDED TO DISSOLVE THE SOLIDS IN THE MILK AND LET THE BUTTER FAT COME TO THE TOP. (NEGATIVE BY C. BOTTOMLEY).
HERD TESTING. MRS. A. HERD, THE FIRST WOMAN HERD-TESTER IN AUSTRALIA ABOUT TO LEAVE FATHER'S HOME, TO MAKE HER MONTHLY ROUND OF THE DAIRY FARMS IN HER DISTRICT. (NEGATIVE BY C. BOTTOMLEY).
HERD TESTING. AFTER THE MILK IS WEIGHED, A SAMPLE IS DRAWN OFF BY MEANS OF A PIPETTE, BEFORE IT IS MEASURED OFF INTO A TEST-TUBE. (NEGATIVE BY C. BOTTOMLEY).
HERD TESTING. THE WAR HAS LARGELY INCREASED THE USE OF MILKING MACHINES. THIS IS PART OF A MODERN EQUIPMENT. (NEGATIVE BY BOTTOMLEY).
