In this book, Peter E. Raper provides a detailed investigation of the earliest recordings of words available. Words from Old Cape dialects are compared for correspondences in sound and meaning to words from 29 Bushman languages and dialects, as well as to words from Nama, Koranna, Griqua, !Xuhn, !Xoon, Khwe and N/uu.
Voices Past and Present provides an extensive corpus of words that can be further utilised for the purpose of shedding light on the specific languages from which the recorded words (and names) were derived, on historical distribution of the various groups, on the classification of the different languages and peoples, for determining relationships or otherwise between the different languages, potentially identifying components of place-names and ethnonyms from ancient and extinct languages, and elucidating other matters that have long vexed scholars who have complained about a lack of recorded data.