キクユ族
The book contains an appendix in which Armstrong proposes an orthography for Kikuyu. She suggested that the voiced dental fricative be represented by and the prenasalized plosive by ; in parallel were the pairs / and / . Westermann and Ward also advocated the use of for in their book. Kenyatta thought Kikuyu people would not accept the use of for because in the other orthographies Kikuyu people would be familiar with, namely English and Swahili, represents a stop consonant, not a fricative; Armstrong noted there did not seem to be any objection to using and to represent fricatives in Kikuyu orthography even though they represent stops in English. The use of for has also been criticised as there is no alternation between and in Kikuyu unlike the other two pairs; furthermore the Kikuyu voiced dental fricative phonologically patterns with voiceless fricatives instead of with other voiced ones.