In order to obtain more evidence on the systematic behavior of nuclear energy levels in the deformed region, a number of neutron-deficient odd-mass activities were studied with internal conversion electron spectrographs. Some scintillation counter measurements were made. Level schemes are postulated for decays leading to the following odd-neutron nuclei: Pm 151 -* Sm 151 , Tb 151 -» Gd 151 , Tb 153 -> Gd 153 , Tb 155 -> Gd 155 , . As a corollary, data are presented for the odd-proton nuclei populated in the decays of Pt 189 -» Ir 189 and Pt 191 -* Ir 191 . The proposed states are described using the Mottelson and Nilsson predictions. Some conclusions may be drawn concerning such properties of these orbitals as moments of inertia, Ml/El mixing ratios, and positions of the intrinsic excitations. Ratios of gamma-ray transition probabilities from the various states are given. Previously published studies of odd-^4 nuclei in the region of odd-TV numbers 99-107 are incorporated in the energy-level systematics.

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