1. Ashby, W. (1919). J. exp. Med., 29, 267.
2. Baar, H. S., and Lloyd, T. W. (1943a). Arch. Dis. Childh., 18, 1.
3. Rh-negative erythrocytes transfused to twentyone infants with haemolytic disease survived for not less than approximately eighty days in all but one case. In the majority of the cases the rate of elimination appeared to be uniform, so that approximately 1 per cent. of the erythrocytes was eliminated each day and the total time of survival appeared to be approximately one hundred days. In five instances, however, the initial rate of destruction appeared to be distinctly greater and in the one exceptional case mentioned above only 28 per cent. of the donor cells were found to be surviving seven days after transfusion. Because of the absence of any obvious cause for this more rapid destruction
4. (1943b), Ibid., 124.
5. Boorman, K. E., Dodd, B. E., and Mollison, P.L. (1942).