Crossover reconstitution of cocultures of stromal cells and nonadherent hematopoietic cells derived from BM cells of TN-C–deficient mutant and control mice obtained at 7 weeks of age. Results represented as the percentage of the value obtained in cumulative mean ± SD of nonadherent cells produced weekly for 4 weeks by triplicate cultures per group, which gave 11.8 × 10⁵cells/well in Dexter's condition (a) and 1.7 × 10⁵cells/well in Whitlock-Witte's condition (b) in coculture of stromal cells and hematopoietic cells from control mice. Two other identical experiments gave comparable results.