TY ISLANDS.[244]
1. ca.
2. lue.
3. koeni.
4. eke.
5. tji pi.
6. ca ngemen = 1 above.
7. lue ngemen = 2 above.
8. koeni ngemen = 3 above.
9. eke ngemen = 4 above.
10. lue pi = 2 x 5.
11. ca ko.
12. lue ko.
13. koeni ko.
14. eke ko.
15. koeni pi = 3 x 5.
16. ca huai ano.
17. lua huai ano.
18. koeni huai ano.
19. eke huai ano.
20. ca atj = 1 man.
BONGO.[245]
1. kotu.
2. ngorr.
3. motta.
4. neheo.
5. mui.
6. dokotu = [5] + 1.
7. dongorr = [5] + 2.
8. domotta = [5] + 3.
9. doheo = [5] + 4.
10. kih.
11. ki dokpo kotu = 10 + 1.
12. ki dokpo ngorr = 10 + 2.
13. ki dokpo motta = 10 + 3.
14. ki dokpo neheo = 10 + 4.
15. ki dokpo mui = 10 + 5.
16. ki dokpo mui do mui okpo kotu = 10 + 5 more, to 5, 1 more.
17. ki dokpo mui do mui okpo ngorr = 10 + 5 more, to 5, 2 more.
18. ki dokpo mui do mui okpo motta = 10 + 5 more, to 5, 3 more.
19. ki dokpo mui do mui okpo nehea = 10 + 5 more, to 5, 4 more.
20. mbaba kotu.
Above 20, the Lufu and the Bongo systems are vigesimal, so that they are,
as a whole, mixed systems.
The Welsh scale begins as though it were to present a pure decimal
structure, and no hint of the quinary element appears until it has passed
15. The Nahuatl, on the other hand, counts from 5 to 10 by the ordinary
quinary method, and then appears to pass into the decimal form. But when 16
is reached, we find the quinary influence still persistent; and from this
point to 20, the numeral words in both scales are such as to show that the
notion of counting by fives is quite as prominent as the notion of
referring to 10 as a base. Above 20 the systems become vigesimal, with a
quinary or decimal structure appearing in all numerals except multiples of
20. Thus, in Welsh, 36 is _unarbymtheg ar ugain_, 1 + 5 + 10 + 20; and in
Nahuatl the same number is _cempualli caxtolli oce_, 20 + 15 + 1. Hence
these and similar number systems, though commonly alluded to as vigesimal,
are really mixed scales, with 20 as their primary base. The Canaque scale
differs from the Nahuatl only in forming a compound word for 15, instead of
introducing a new and simple term.
In the examples which follow, it is not thought best to extend the lists of
numerals beyond 10, except in special instances where the illustration of
some particular point may demand it. The u
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