An investigation of some problems concerning nucleolus organizers in salamanders Herbert C. MacgregorMarcela VladLesley Barnett OriginalPaper Pages: 283 - 299
localisation of non-replicating heterochromatin in polytene cells of Drosophila nasuta by fluorescence microscopy Mahesh KumarS. C. Lakhotia OriginalPaper Pages: 301 - 305
Analyse de la transmission des chromosomes surnuméraires chez Locusta migratoria migratorioides R. et F. (Orthoptera, Acrididae) Robert Lespinasse OriginalPaper Pages: 307 - 322
Evidence for dosage compensation in parthenogenetic Hymenoptera Ellen M. RaschJoseph D. CassidyRobert C. King OriginalPaper Pages: 323 - 340
Karyotype evolution in Australian ants Hirotami T. ImaiRoss H. CrozierRobert W. Taylor OriginalPaper Pages: 341 - 393