Card index in two separate sequences, one English/ Bantu, the other Bantu/English, detailing related synonymous Bantu roots, identified by a hypothetical form.

The languages included are: Bemba, Karanga, Kavirondo, Kikuyu, Luba, Luganda, Nyanja, Nyoro, Sukuma, Swahili, Taita, Yao and Zulu. The introduction outlines Crabtree's theory of Bantu origins as substantiated by the evidence of these sound correspondences.