Abstract
Sedimentation of the corpuscles of heparinized blood was determined by noting the extent of fall in glass tubes with an inside diameter of 4 mm. and height of 100 mm. during an interval of 1 hour. The tubes were centrifuged to insure complete sedimentation and the sedimentation index computed as the ratio between the sedimentation observed in 1 hour and the possible maximum extent of sedimentation.Precipitability of serum protein was determined by adding various amounts of aluminum sulphate, as contained in a unit volume of 1 cc. to 0.2 cc. of unheated blood serum in small tubes. Serum and reagent were mixed and set aside at room temperature for 1 1/2 hours. A heavy flocculent precipitate that settled out, leaving a clear supernatant fluid, was recorded as a positive reaction.Maximal, minimal and average values for these blood properties as observed in the arterial blood of 20 normal male rabbits, with similar values for total protein, fibrin, globulin and albumin as contained in the plasma are listed in ...
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