Part 1 Articulatory phonetics: vocal organs; initiation; phonation; syllables; manners of articulation; place of articulation; orality and nasality; plosive theory; vowels; primary, secondary and double articulations; suprasegmentals; instrumenation. Part 2 Acoustic phonetics: frequency and pitch; intensity and loudness; resonance; recording speech; acoustic analysis - the spectrograph; acoustic characteristics of vowels and diphthongs, sonorants, obstruents, suprasegmentals, connected speech. Part 3 Auditory phonetics: hearing - the ear, perception, comprehension; deafness; audiological measurement; psychoacoustic experiments; feedback in speech; delayed auditory feedback; dichotic listening; time variated speech. Appendix: Phonetic symbols and notes on transcription.