Language, life and literature // The place of speech therapy among the sciences // Signs and signals // Linguistics and speech pathology // Historical linguistics // The quantum of language // Coding and decoding in speech // Aids to diagnosis and therapy // Evaluating the nature and degree of defects and disorders of voice, speech and language // Sign posts in diagnosis // The suppression of the signal // Breakdown in communication in a nine year old boy // Children's drawing their value in therapy // Informative and manipulative signs and signals in language learning // The data underlying the concept of dyslalia // Analysis of the linguistic data of dyslalia // Towards a new concept of dyslalia // Clues in aphasia // The assessment of defective speech in an adult // A critical investigations into the problem of dysarthria // A pilot scheme for speech therapy in training centres // Speech therapy with backward children // Some problems facing the adult with progressive deafness and lipreading // Index //