High Court Will Decide Con Ed Suit
US Supreme Court to decide whether Consolidated Edison may send statements of its views on controversial public issues along with monthly bills to customers; PSC rule against such inserts was upheld by NYS courts, which say rule is not restriction on Con Ed's right to express itself, only on 1 manner of communication; utility says that not only contents of communications but also right to distribution is protected; question of who pays for inserts is not at issue in case, since Con Ed does not dispute PSC's view that cost should be borne by shareholders rather than customers as part of rate base (M)