52 METHODS OF OBTAINING HUMAN AND ANIMAL BLOOD 



avoided, as the needle-track under the skin closes after the needle is 

 withdrawn and serves to seal the puncture. The needle is attached to 



FIG. 26. BLEEDING A HORSE FROM THE JUGULAR VEIN. 



sterile rubber tubing that conducts the blood into special jars (Fig. 26), 

 In this manner from six to twelve liters of blood are easily obtained. 



