Stoney Phonology

[Ogalala2 at aol.com]

    I need some help with Stoney phonology.  I have been using John Laurie's
"Dictionary of the Stony Language."  He uses h where other Siouan linguist use
x for the gutteral German ch.  He also uses h for h and for the gutteral g,
the sonant
of x.  My questions are:  Does Stoney not contain the gutterals?  Is h the
proper phoneme to represent all three of the phonemes mentioned above?

    Thanks for your help.

    Ted Grimm