Systematic multicon6gurationHartree-Fock results are presented for the transition probabilities and excited-state lifetimes in the term system of the boron atom. Particularly, the interaction between the 1s 2s2p configuration and the 18 28 n8 8 and 18 2s nd D Rydberg series is considered.Term energies and transition-matrix elements are calculated to convergence using increasing active sets of a, p, d, f, and g orbitals.