Using the CLEO II detector, we have measured the differential cross sections for exclusive two-photon production of light pseudoscalar mesons 0 , , and Ј. From our measurements we have obtained the form factors associated with the electromagnetic transitions ␥*␥→meson. We have measured these form factors in the momentum transfer ranges from 1.5 to 9, 20, and 30 GeV 2 for 0 , , and Ј, respectively, and have made comparisons to various theoretical predictions. ͓S0556-2821͑98͒01001-7͔

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Using the CLEO detector at the Cornell Electron Storage Ring, we have made a measurement of R ϵ (e ϩ e Ϫ →hadrons)/ (e ϩ e Ϫ → ϩ Ϫ )ϭ3.56Ϯ0.01Ϯ0.07 at ͱsϭ10.52 GeV. This implies a value for the strong coupling constant of ␣ s (10.52 GeV)ϭ0.20Ϯ0.01Ϯ0.06, or ␣ s (M Z )ϭ0.13Ϯ0.005Ϯ0.03.

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We report new measurements of the differential and total branching ratios for inclusive B decay to D 0 , D ϩ , and D* ϩ and the first measurement of the same quantities for inclusive B decay to D* 0 . Here B is the mixture of B d and B u from ⌼(4S) decay. Furthermore, since more than one charm particle ͑or antiparticle͒ of the same kind can be produced in B decay, here ''inclusive B branching ratio'' is used to mean the average number of charm particles and their antiparticles of a certain species produced in B decay. We obtain the following results ͑the first error is statistical, the second systematic of this analysis, the third propagated from other measurements͒: