On July 4,1934 After the finish of the holiday doubleheaders by all the teams, the Giants, by winning two from the Braves at the Polo Grounds, have a clear lead. They are 3 1/2 games ahead of the Cubs and 4 1/2 in front of the Cardinals. In the American League, the race has seesawed between the Yankees and Detroit with New York only one game ahead. The improved Red Sox are 6 1/2 behind, and Washington, last year’s winner, seven back and dropping fast.