Editor & Publisher reported yesterday that, like most newspapers in the country, the Chicago Tribune has taken yet another fall in circulation. In fact, the 6.6% loss on its daily edition figures was sharp enough to rank among the highest in the country. The Sun-Times? Well, after providing inflated data in the past, it's been excluded from study, though E&P suggests it hasn't been immune from the trend, either. There is little hint in the Tribune account of what the paper might do to stem this slide, but given speculation about the possibility of its adopting a tabloid format, it'll be interesting to see what happens next.