George Gibbs, Dictionary of the Chinook Jargon…
“ Although no fixed system of spelling exists among them, I have therefore deemed it best to preserve for the Jargon words that which most distinctly represents the common English pronunciation; while for the Indian derivations, I have adopted that recommended by the Smithsonian Institution in collecting Indian vocabularies, using the Italian sounds of the vowels, and representing the guttural of the German ich by kh. This seemed the more proper, as the work would thereby be rendered of practical use, independent of what philological value it may possess. ”
