[en] Three results are presented: (1) The semi-leptonic branching ratio of the Λ_c has been measured at SPEAR to be B(Λ_c⁺ → e⁺X) = (4.5 +- 1.7)%. (2) Properties of tau-pair production have been measured at PEP at square root S = 29 GeV: sigma^{tau tau}sigma^QED = 0.97 +- 0.05 +- 0.06; the forward-backward asymmetry is A_{tau tau} = (-3.5 +- 5.0)%; inclusive branching ratios are B(tau → 1 Prong) = (86 +- 4)%, B(tau → 3 Prongs) = (14 +- 4)%, B(tau → 5 Prongs) < 0.6% (95% C.L.). (3) A search has been performed for the pair production of charged, point-like, spin 0 particles. The existence of such particles can be ruled out at a 90% confidence level for 3 approx. < M approx. < 10 GeV/c² and branching ratio into hadrons approx. < 90%