Description
MELBOURNE, VIC. 1943-05-20. ONE OF THE LATTER STAGES OF PROCESSING BLOOD PLASMA INTO SERUM AT THE COMMONWEALTH SERUM LABORATORIES, WHERE BLOOD OBTAINED FROM DONORS AT THE VARIOUS BLEEDING CENTRES IS COLLECTED AND PREPARED FOR TRANSFUSIONS. THE BOTTLE OF PLASMA, AFTER THE ADDITION OF CALCIUM CHLORIDE, IS QUICKLY PLACED ON AN INGENIOUS SHAKING MACHINE WHICH RAPIDLY SWIRLS THE CONTENTS OF THE BOTTLE IN APPROXIMATE THE MOTION PRODUCED BY THE SKILLED BIOCHEMIST WHEN HAND CO-AGULATION IS ATTEMPTED. THIS ACTION CAUSES THE FIBRIN WHICH IS FORMED DURING THE CLOTTING PROCESS TO BE WOUND AROUND THE CENTRAL TUBE IN THE BOTTLE. THE PLASMA IS THUS CONVERTED INTO SERUM.
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Colour: Black & white
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Copyright expired - public domain
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