Four artists from the Riverdale Art Association are the special artists of the month at Gallery 18 at the Riverdale Y. At November's showing, titled 'A Tour With Four,' Michael Sharkey does paintings in oil; Ruth Hurd does art in watercolor; Beverly Barker will exhibit her photography; and Joyce Dutka will display artwork in acrylics. Each of the artists have exhibited their works throughout Westchester County. A reception for the four artists will be held at Gallery 18 at the Riverdale Y on Sunday, November 10 from 1:00pm to 3:30pm. The entire community is invited.