According to oriented-growth theory x'2 (Beck et al., 1953;Schmidt and Lucke, 1979) recrystallization textures are determined by the parent deformation textures through a maximum growth rate relationship. On this basis the mode of prior deformation, then, should be important only in regard to the type of deformation texture it produces. On the other hand, according to oriented-nucleation theory (Burgers and Louwerse, 1931; Dillamore and Katoh 1974) which asserts that the formation of recrystallization textures is controlled by the particularities of the deformed microstructure, the mode of prior deformation is of primary importance. In considering the rolling of metals it is usual to approximate the deformation mode as plane-strain compression, which corresponds to a pure shear deformation. Detailed analyses have been reported which characterize the deformed microstructure developed in pure shear with the aim of identifying orientations likely to develop on subsequent recrystallization (Dillamore and Katoh, 1974;Dillamore et al., 1972).Pure shear is produced by the operation of suitably disposed positive and negative simple shears. However, the shear planes are not necessarily those of maximum shear stress (Dillamore et al., 1979) i.e. planes inclined at 45 to the compression plane. In heavily rolled metals these planes are inclined at angles close to 35 to the rolling plane (Duggan 39