Fraction of NBr donor HIS41⁺ cells in thymus, spleen, and lymph nodes as correlated with fraction positive marrow granulocytes.

Thymus (●), spleen (▵), and lymph node cells (○), except for plot A where spleen is (■) and lymph node is (▵), in Lewis recipients plotted as a function of fraction positive donor marrow granulocytes from individual recipients. (A) Primary recipients at 6 weeks. (B) Primary recipients at 20 weeks. (C) Secondary recipients at 6 weeks when marrow was transferred from primary recipients at 6 weeks. (D) Tertiary recipients at 70 weeks when marrow was transferred from secondary recipients at 20 weeks and from primary recipients at 6 weeks.