The Barnett-Chao (abbreviated here as B-C) system of romanization for writing Cantonese is based on the principles of the Gwoyeu Romatzyh system (abbreviated as GR) for writing Mandarin Chinese in the Latin alphabet. The Barnett-Chao system has had a limited following and appears almost exclusively in Y.R. Chao's Cantonese Primer. The two reasons for its lack of widespread adoption despite the inherent benefits of tonal spelling are that it 1) requires a large number of roman letters to represen… (More on Barnett-chao)