Fig. 4.
Changes of lymphocyte counts in peripheral blood after transplantation of lethally irradiated BALB/c mice with bone marrow and spleen cells from naive (•,▴) or tolerant (○,▵) CBA mice as described in Fig 1. Experiment I: 5 × 106 bone marrow cells + 2.5 × 105 spleen MNL. Experiment II: 5 × 106 bone marrow cells + 4 × 105 spleen MNL. Each value is mean ± SD.