Preface: Pleasure, S.J.; Baraban, S.C.; Mini Reviews; Axon Pruning in the Developing Vertebrate Hippocampus: Faulkner, R.L.; Low, L.K.; Cheng, H.-J.; Ectopic Granule Cells of the Rat Dentate Gyrus: Scharfman, H.; Goodman, J.; McCloskey, D.; Original Papers; Microarray Analysis of the Fetal Hippocampus in the Emx2 Mutant: Skutella, T.; Conrad, S.; Hooge, J.; Bonin, M.; Alvarez-Bolado, G.; Expression of SDF-1 and CXCR4 during Reorganization of the Postnatal Dentate Gyrus: Berger, O.; Li, G.; Han, S.-M.; Paredes, M.; Pleasure, S.J.; Postnatal Development of Entorhinodentate Projection of the Reeler Mutant Mouse: Muraoka, D.; Katsuyama, Y.; Kikkawa, S.; Terashima, T.; Anatomic and Electrophysiologic Evidence for a Proconvulsive Circuit in the Dentate Gyrus of Reeler Mutant Mice, an Animal Model of Diffuse Cortical Malformation: Patrylo, P.R.; Willingham, A.; Balance between Neurogenesis and Gliogenesis in the Adult Hippocampus: Role for Reelin: Zhao, S.; Chai, X.; Frotscher, M.; Granule Cell Dispersion and Aberrant Neurogenesis in the Adult Hippocampus of an LIS1 Mutant Mouse: Wang, Y.; Baraban, S.C.; Dentate Development in Organotypic Hippocampal Slice Cultures from p35 Knockout Mice: Wenzel, H.J.; Tamse, C.T.; Schwartzkroin, P.A.; Citron Kinase Is Required for Postnatal Neurogenesis in the Hippocampus: Ackman, J.B.; Ramos, R.L.; Sarkisian, M.R.; LoTurco, J.J.; Two Genetic Rat Models of Arterial Hypertension Show Different Mechanisms by Which Adult Hippocampal Neurogenesis Is Increased: Kronenberg, G.; Lippoldt, A.; Kempermann, G.; Pneumococcal Meningitis Induces Apoptosis in Recently Postmitotic Immature Neurons in the Dentate Gyrus of Neonatal Rats: Grandgirard, D.; Bifrare, Y.-D.; Pleasure, S.J.; Kummer, J.; Leib, S.L.; Tauber, M.G.; Loss of Embryonic MET Signaling Alters Profiles of Hippocampal Interneurons: Martins, G.J.; Plachez, C.; Powell, E.M.; Persistently Decreased Basal Synaptic Inhibition of Hippocampal CA1 Pyramidal Neurons after Neonatal Hypoxia-Induced Seizures: Sanchez, R.M.; Justice, J.A.; Zhang, K.; Recurrent Seizures and the Molecular Maturation of Hippocampal and Neocortical Glutamatergic Synapses: Swann, J.W.; Le, J.T.; Lee, C.L.; Postnatal Development of the Primate Hippocampal Formation: Lavenex, P.; Banta Lavenex, P.; Amaral, D.G.; A Comparison Study of the Vertical Bias of Pyramidal Cells in the Hippocampus and Neocortex: Casanova, M.F.; Switala, A.E.; Trippe, J.; Author Index; Subject Index.