ivoco benai = 1-4.
9.

ivoco betano = 1-5.
10.

dioum.
No explanation is given by Mr.du Chaillu for such an apparently incomprehensible form of expression as, for example, 1-3, for 7.

Some peculiar finger pantomime may accompany the counting, which, were it known, would enlighten us on the Mbousha's method of arriving at so anomalous a scale.

Mere repetition in the second quinate of the words used in the first might readily be explained by supposing the use of fingers absolutely indispensable as an aid to counting, and that a certain word would have one meaning when associated with a certain finger of the left hand, and another meaning when associated with one of the fingers of the right.