by means of a novel adaptation of the evelyn photoelectric colorimeter to the measurement of relative turbidities , the question of the flocculation maximum ( f.m . ) in acetate buffer solutions of varying ph and salt content has been studied on ( a ) an exceptionally stable prothrombin-free fibrinogen and its solutions after incipient thermal denaturation and incomplete tryptic proteolysis , ( b ) plasma , similarly treated , ( c ) prothrombin , thrombin , and ( brain ) thromboplastin solutions .
C0423896
content
C0006104
brain