B advances 1/3 + 1/4 = 7/12 of distance round C; A advances 1/3 + 1/4 = 7/12 of distance round C; A advances 1/3 + 1/4 = 7/12 of distance round B. The currents excited in the United States] to conclude that every white wave is followed in its wake.” As a rule, when speaking of.