The thermoelectric powers of the solid high-conductivity phases of the salts: Agi, KAg4I5, RbAg4I5, NH4Ag4I5, (CH3)4NI·6.5 AgI, Ag2HgI4 and Ag3SI have been measured by means of a silver-electrode thermocell. On the basis of the data the transport entropies of the silver ion have been calculated. Moreover the possibility to obtain heats of transport from thermoelectric measurements has been briefly discussed.