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Deep inelastic electron-photon scattering is studied in the Q 2 ranges from 6 to 30 GeV 2 and from 60 to 400 GeV 2 using the full sample of LEP data taken with the OPAL detector at centre-of-mass energies close to the Z 0 mass, with an integrated luminosity of 156.4 pb −1 . Energy flow distributions and other properties of the measured hadronic final state are compared with the predictions of Monte Carlo models, including HERWIG and PYTHIA. Sizeable differences are found between the data and the models, especially at low values of the scaling variable x. New measurements are presented of the photon structure function F γ 2 (x, Q 2 ), allowing for the first time for uncertainties in the description of the final state by different Monte Carlo models. The differences between the data and the models contribute significantly to the systematic errors on F γ 2 . The slope d(F γ 2 /α)/d ln Q 2 is measured to be 0.13 + 0.06 − 0.04 .

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