Recent results from DORIS

New data on bottonium spectroscopy concern the search of γγ-cascade decays of UPSILON' (UPSILON' → γγUPSILON, UPSILON → e+e- or μ+μ-) and yield one event giving a branching ratio <= 7%. The UPSILON direct hadronic decays are used as a gluon factory and the gluon fragmentation is compared to quark fragmentation. Sphericity (and other topological quantities), charged multiplicity, particle correlations, γ-fraction, and inclusive spectra are equal. The phenomenological differences come from the different decay mechanisms (CONT → 2 quark jets vs. UPSILON → 3 gluon jets). The only difference seen is an enhanced anti p yield of UPSILON and UPSILON' decays. In a narrow energy scan in the energy regions 7.4-7.5 and 8.6-9.4 GeV no new resonance or new step is seen. (orig.)