Show S. S L L. Stock Exchange Closes on Friday Salt Lake stock exchange will willbe willbe willbe be closed Friday it was an an- The regular summer polIcy polIcy policy pol pol- pol- pol icy of not operating on Saturday will remain in force Domestic security and commodity commod commod- ity markets throughout the United States will be cl closed ed Friday and Saturday with the exception of the grain exchanges exchange which will operate as aI usual on Saturday Canadian security exchanges and the London stock exchange will willbe be open Friday |