1. Neutron efficiencies were computed by a version of the 05S code of R. E. TEXTAR and V. V. VERBINSKI, ORNL-4160, Oak Ridge National Laboratory (1968).
2. F. LYNCH, Argonne National Laboratory, Private Communication (1975).
3. J. A. GRUNDL and C. M. EISENHAUER, Nuclear Cross Sections and Technology, NBS Special Publication 425, Vol.1, p. 250, National Bureau of Standards (1975).
4. J. R. SMITH, Nuclear Cross Sections and Technology, NBS Special Publication 425, Vol.1, p. 262, National Bureau of Standards (1975).