Page ID THE POST, Frederick, MarylandTuesday, February 22, 1966A Serious NoteDON LOUN was writing postcards to the home folks in his room at the International Motel in Pompano Beach, Fla., when the long distance call came through Sunday night. But Loun, who makes his living as a pitcher in the employ of the Washington Senators, took time out to discuss baseball, particularly his place in the game.There is no false facade to Don Loun, a lefthander who made his major league debut two years ago with a stunning two-hit shutout over the Boston Red Sox. He speaks what he feels; he doesn't sidestep questions and his answers are wholly when he believes. In his second year at the Senators' main camp, Loun understands that’s the way to play the game. At 25, he’s not a rookie anymore except in baseball terms.