Siouan Long Vowls

[Koontz John E]

On Wed, 21 Mar 2001 Rgraczyk at aol.com wrote:
> > If memory serves
> > (and Randy can correct me on this) Crow has three degrees of length, tho' I
> > don't know how this is resolved phonetically. High, low, rising and falling
> > pitch are all distinctive.

Atsina has three degrees of length, due, if I recall correctly, to loss of
intervocalic laryngeal consonants in a system which already had two
degrees of length.

> As far as I can tell Crow has only two degrees of length.  High and low pitch
> vowels may be either long or short; falling pitch vowels are only long.
>
> Randy

Are there ever cases of two adjacent identical vowels?

JEK