Evidence For New Isotopes Of Element 107: (266)Bh And (267)Bh

New neutron rich istotopes (267)(107)Bh and (266)(107)Bh were produced in bombardments of a Bk-249 target with 117-MeV and 123-MeV Ne-22 ions at the Lawrence Berkeley :National Laboratory 88-Inch Cyclotron. Identification was made by observation of correlated alpha-particle decays between the Ph isotopes and their Db and Lr daughters using a rotating wheel system. (267)Bh was produced with a cross section of approximate to 70 pb and decays with a 17(-6)(+14) s half life by emission of alpha z particles with an average energy of 8.83 +/- 0.03 MeV. One atom of (266)Bh was observed, decaying within 1 s by emission of a 9.29-MeV alpha particle.