Abstract: A contactor for a vacuum type circuit interrupter having a pair of detachable electrodes in a vacuum chamber comprises an electrode obtained by melting or sintering a composition of an electric conductive metal of copper or silver as a main component and at least one metal oxide having a melting point lower than that of said conductive metal of bismuth oxide, thallium oxide, indium oxide, antimony oxide or tellurium oxide as an additive, in vacuum or a reduced atmosphere or a nonoxidative atmosphere.

Abstract: A silver halide color photographic material which comprises a support, a silver halide emulsion layer provided thereon and a layer provided contiguous to said silver halide emulsion layer, said silver halide emulsion layer containing silver halide crystals of which average crystal size is not greater than 0.9 microns and at least 95% by number of total crystals have crystal sizes falling within .+-.40% said average crystal size, and said silver halide emulsion layer and/or said layer contiguous thereto containing a compound represented by the following general formula [I] ##STR1## where R.sub.1 and R.sub.2 independently represent an alkyl group having 6 to 12 carbon atoms.