Abstract
We have made new observations of the O-B emission line stars ζ Ori, P Cyg, ψ Per, and γ Cas using a Michelson Spectrophotometer which gave us photometrically precise spectra in the 4800-10200 A range. The spectral resolution is 3.85 cm-1. The stars P Cyg, ψ Per, and γ Cas show an unusually strong Mg II doublet (9217, 9243 A) in emission, which has not been previously reported. Our spectra show forty-two unidentified lines previously associated with nova-like and planetary nebulae spectra. Thirty-three of these lines are observed in P Cyg, and only four of these lines are present in ζ Ori. Many are due to Fe II.