So many leagues 'raised a degree' of 17 and a half leagues, and other distances were worked out by rule of three, that is, simple proportion.
Imigama emininzi yaphakamisa inqanaba leshumi elinesixhenxe lesiqingatha somgama, eminye imigama yasetyenzwa ngumthetho wabathathu, ukutsho, ulwalamano olulula