Developmental activities are reported on Borax-V, EBR-I, EBR-II, FARET, general reactor technology, and advanced reactor research. Other work is reported on the Pu recycle program and nuclear safety. (J.R.D.)

Progress is reported on BORAX-V, liquid-metal-cooled reactors including EBR-I and -II and FARET, general reactor technology, plutonium recycle program, advanced systems research and development, direct conversion studies, and fast and thermal reactor safety studies. (M.C.G.)

Progress made in the reactor development program at Argonne National Laboratory is reported. Information and data are presented on Borax-V, SL-1, ZPR- III, ZPR-VI, ZPR-VII, ZPR-IX, EBR-I, EBR-II, FARET, EBWR, Treat, nology is presented along with nuclear safety. Reactor fuel element and material development is emphasized. (N.W.R.)

Research and development activities are reported on Borax V, ZPR- III, - VI, and -IX, EBR-I, EBR- II, and FARET. Reactor technology investigations are reported in reactor physics, reactor fuel development, viewing systems, heat engineering, and chemical separations. Research on advanced systems is reported on reactors and undersea nuclear power applications. Nuclear safety development in thermal and fast reactors is also reported. (J.R.D.)

Development progress is reported on fast reactors, liquid metal cooled reactors, ZPR-III, ZPR-VI, ZPR-IX, Borax-V, Faret, EBR-I, EBR-II, Treat, Fermi Fast Breeder Reactor, critical assemblies, Argonne Fast Source Reactor, EBWR, Argonne Advanced Research Reactor, magnetohydrodynamic cells, fuel cells, and boiling water reactors. Reactor technology is reported on fuel development and properties, physics, heat engineering, materials development, chemical separations, nuclear safety, and nondestructive testing. (N.W.R.)