People interested in mutants in the 14-15 region of the X-chromosome of Drosophila melanogaster should contact me. I will keep lethal stocks until November- they have been mapped to 3 regions: 13F-14B1, 14B1-18, and 15A6-16A7. Suzanne Rutherford, Genetics Department, University of Cambridge, Downing Street, Cambridge CB2 3EH, UK.