The results of transmission electron microscopic studies of silver halide micro-crystals were presented. Pure AgBr, as well as core-shell AgBr-AgBrI crystals, were investigated. In the former case, parallel and non-parallel twinning modes which yielded tabular and needle- or tetrahedral-shaped micro-crystals, respectively, were noted. A short-range order of Ag+ interstitials around the twin planes, as determined from the diffuse intensity in reciprocal space, was described. The latter yielded a technique for determining the variant in which dislocations were located in certain core-shell micro-crystals. The introduction of I also resulted in the presence of inclined stacking faults in the shell and of long-range I ordering on the crystal surface.Transmission Electron Microscopy Studies of (111) Twinned Silver Halide Microcrystals. C.Goessens, D.Schryvers, J.Van Landuyt: Microscopy Research and Technique, 1998, 42[2], 85-99