1. Tom Humphries is assistant professor in the Department of Paediatrics and adjunct professor in the Department of Instruction and Special Education of the Ontario Institute for Studies in Education (OISE), University of Toronto. He also is director of the Child Development Clinic in the Division of Neurology of the Hospital for Sick Children, Toronto. His research interests include treatment efficacy associated with learning disabilities and concomitant language and attention problems.
2. Janet Bone is a psychometrist in the Department of Psychology of the Durham Board of Education, Ontario, Canada. Her interests include psychodynamic assessment and play therapy. Address: Tom Humphries, Director, Child Development Clinic, Hospital for Sick Children, 555 University Ave., Toronto, Ontario M5G 1X8, Canada.