Journal of the Institute of Mental Subnormality (APEX)Volume 7, Issue 2 p. 69-69 Free Access Readers' Letters First published: September 1979 https://doi.org/10.1111/j.1468-3156.1979.tb00451.xAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. References Bailey, R. D., 1978. Makaton Success: fact and artefact. Apex, Vol. 6, No. 3, pp. 18– 19. A. M. Clarke, A. D. B. Clarke (eds), 1974. Mental Deficiency ( 4th Edit.). The changing outlook (p. 9). Methuen, London. Kiernan, C., 1978. Alternatives to speech: a review of research on manual and other forms of communication with the mentally handicapped and other non-communicative populations. Brit. J. Mental Subnormality, Vol. XXIII, Part 1. No. 44, pp. 6– 28. Piaget, J., 1952. The Origins of Intelligence in Children ( 2nd Edit.). Sidgewick and Jackson, London. Walker, M., 1979. The Makaton — in perspective. Apex. Vol. 7, No. 1. pp. 12– 14. Volume7, Issue2September 1979Pages 69-69 ReferencesRelatedInformation