  The energy dependence of the energy and position resolutions of the
electromagnetic calorimeter prototype made of lead tungstate crystals produced
in Bogoroditsk (Russia) and Shanghai (China) is presented. These
measurementswere carried out at the Protvino accelerator using a 1 to 45 GeV
electron beam. The crystals were coupled to photomultiplier tubes. The
dependence of energy and position resolutions on different factors as well as
the measured electromagnetic shower lateral profile are presented.
