Notes:

Summary:	Conrady, Li and others have noticed the Tibetan sound changes ḫz > ḫdz and ḫź > ḫǰ, but there is also evidence for the changes dz > z and ǰ > ź (first noted by Schiefner). After presenting the evidence for dz > z and ǰ > ź respectively, this paper considers the other origins of ź, namely lʲ and rʲ. Finally, an attempt is made to establish the relative chronology of the changes proposed.