Properties of the bbg vertex

We have used the unique strengths of the SLAC linear collider (SLC) and the SLD detector to study some important properties of the bbg vertex. Using the excellent impact parameter resolution to identify and tag jets produced by light quarks, by charmed quarks, or by bottom quarks, we have measured the lack of dependence of the strong coupling αs, on quark flavor to within 1.6% (uds), 7.9% (c), and 3.1% (b). We have set an upper limit of less than 7% on an anomalous chromomagnetic coupling at the bbg vertex. Finally we have shown the parity violation and symmetry properties of the bbg vertex agree with QCD calculations to the 10% level. (orig.)