In Albania there exists one single fragment of vigesimal numeration, which is probably an accidental compound rather than the remnant of a former vigesimal number system. With this single exception the Albanian scale is of regular decimal formation. A few of the numerals are given for the sake of comparison:[337]
| 30. | tridgiete | = 3-10. |
| 40. | dizet | = 2-20. |
| 50. | pesedgiete | = 5-10. |
| 60. | giastedgiete | = 6-10, etc. |
Among the almost countless dialects of Africa we find a comparatively small number of vigesimal number systems. The powers of the negro tribes are not strongly developed in counting, and wherever their numeral scales have been taken down by explorers they have almost always been found to be decimal or quinary-decimal. The small number I have been able to collect are here given. They are somewhat fragmentary, but are as complete as it was possible to make them.
Affadeh.[338]| 10. | dekang. |
| 20. | degumm. |
| 30. | piaske. |
| 40. | tikkumgassih | = 20 × 2. |
| 50. | tikkumgassigokang | = 20 × 2 + 10. |
| 60. | tikkumgakro | = 20 × 3. |
| 70. | dungokrogokang | = 20 × 3 + 10. |
| 80. | dukumgade | = 20 × 4. |
| 90. | dukumgadegokang | = 20 × 4 + 10. |
| 100. | miah (borrowed from the Arabs). |
Ibo.[339]| 10. | iri. |
| 20. | ogu. |
| 30. | ogu n-iri | = 20 + 10, |
| or iri ato | = 10 × 3. |
| 40. | ogu abuo | = 20 × 2, |
| or iri anno | = 10 × 4. |
| 100. | ogu ise | = 20 × 5. |
Vei.[340]| 10. | tan. |
| 20. | mo bande | = a person finished. |
| 30. | mo bande ako tan | = 20 + 10. |
| 40. | mo fera bande | = 2 × 20. |
| 100. | mo soru bande | = 5 persons finished. |
Yoruba.[341]| 10. | duup. |
| 20. | ogu. |
| 30. | ogbo. |
| 40. | ogo-dzi | = 20 × 2. |
| 60. | ogo-ta | = 20 × 3. |
| 80. | ogo-ri | = 20 × 4. |
| 100. | ogo-ru | = 20 × 5. |
| 120. | ogo-fa | = 20 × 6. |
| 140. | ogo-dze | = 20 × 7. |
| 160. | ogo-dzo | = 20 × 8, etc. |
Efik.[342]| 10. | duup. |
| 20. | edip. |
| 30. | edip-ye-duup | = 20 + 10. |
| 40. | aba | = 20 × 2. |
| 60. | ata | = 20 × 3. |
| 80. | anan | = 20 × 4. |
| 100. | ikie. |
The Yoruba scale, to which reference has already been made, [p. 70], again shows its peculiar structure, by continuing its vigesimal formation past 100 with no interruption in its method of numeral building. It will be remembered that none of the European scales showed this persistency, but passed at that point into decimal numeration. This will often be found to be the case; but now and then a scale will come to our notice whose vigesimal structure is continued, without any break, on into the hundreds and sometimes into the thousands.
Bongo.[343]| 10. | kih. |
| 20. | mbaba kotu | = 20 × 1. |
| 40. | mbaba gnorr | = 20 × 2. |
| 100. | mbaba mui | = 20 × 5. |