Proton-antiproton annihilations at 1.61 13ev/c with only two mesons in the final state have been examined in the 72-in. bubble chamber. The partial cross sections measured are: p + p yields pi /sup -/ + pi /sup +/, 119 plus or minus 30 mu b; p + p yields K/sup -/ + K/sup +/, 55 plus or minus 18 mu b. The K/sup -/ distribution in p + p yields K/sup -/ + K/sup +/ is peaked strongly forward, with 7 of the 11 k/sup -/ mesons produced in the forwardmost tenth of the total solid angle. The pi /sup -/ events show no such effect, with only 2 of the 22 pi /sup -/ mesons being produced in the same forward interval. Careful study of possible contamination of these events indicates that almost all of them are genuine two-meson annihilations. (auth)