bar and dot system, [87]-[95]

examples, plates showing, [157], [167], [170], [176], [178], [179]

colors, [91], [251]

combinations of, for higher numbers, [105]-[107]

forms, [87]-[104]

head-variant forms, [24]-[25], [87], [96]-[104]

plates showing, [167], [170], [176], [178], [179], [180]

one to nineteen, bar and dot forms, [88]-[90]

head-variant forms, [97]-[101]

order of reading, [23], [129], [133], [137]-[138], [156], [170]