312 



ISOELECTRIC POINT OF RED BLOOD CELLS 



Fig. 1. Apparatus for cataphoresis of red blood cells. A, ZnS04; B, buffer; C, 

 saccharose; D, cell suspension. 



small stop-cocks with solution, the two halves of the middle portion 

 can be filled separately with the test suspension and then pressed 

 together, the short length of rubber tubing being left attached to one 



