410 SURGERY AND TRANSPLANTATION 
I I 
50 100 200 
1971 HRS. PUMPING 
Figure 10. — Composite of a decreasing platelet count in five calves with time of pumping of the artificial heart. 
The coagulation system seems to be in a state of compensation with no hemorrhage occurring. 
HRS. PUMPING 
Figure 11. — Blood volume and hematocrit in a long surviving calf. Blood transfusions are given as required dur- 
ing pumping of the artificial heart. 
