To the Editor:— Dr. Lewisohn maintains that the term "whole" blood, as suggested by Dr. Scannel, should include "citrated" blood. I respect the opinions of both of these men. We have been using primarily "citrated" blood for twenty-three years in our obstetric service. I've always differentiated between "citrated" blood and "whole" blood because even though we have used adequate amounts of "citrated" blood, we have, during this period of time, had some 8 or 10 patients who continued to bleed from incisions. This bleeding was promptly stopped by the injection of 400 to 500 cc. of blood without any anticoagulant, the transfer being made by the multiple syringe method. The incidence of reaction has been slightly higher with citrated than with whole blood, but in neither instance have they been of great significance.