Nuclear data sheets for A = 77

The 1966 version of the Nuclear Data Sheets for A = 77 has been revised on the basis of all experimental data received before January 1, 1973. Experimental data, detailed level schemes, and arguments for J^π assignments are presented. Two new isotopes, ⁷⁷Ga and ⁷⁷Rb, are now known to exist while a third, ⁷⁷Zn, has been tentatively identified. A significant amount of new information is now available on the ⁷⁷Ge, ⁷⁷As, ⁷⁷Se, and ⁷⁷Br level schemes.