The construction of a thyratron inflection indicator, its behaviour with certain vowels, and its use in instructing deaf children

This paper discusses the construction of an apparatus, Thyratron Inflection Indicator, to help hearing impaired children learn speech.

The construction and administration of a word hearing test

This paper describes a new word hearing test in order to test the hearing of school age children.

The southern sotho speech identification/discrimination test construction

This paper contains a speech discrimination test in Southern Sotho language (an African language spoken in Southern Africa).