The popularity and success of Chelsea's Sports Days' celebratious induces the assooiatiou to mix a little politics with its races and general sports, therefore Chelsea proposes to open rhe oampaigu with a joint diseussion by Hon. Cnas. E. Townsend against, and Hon. Tbos. E. Barkworth for 16 to 1 silver, on Weduesday next, Sept. 2, at 3 p. va. Before the speakiug there will be a 3 minute horse race, pnrse $10, and a 2 -.30 race, purse $30. Louis Boos is to be present to charm the people ou bis coruet. The second day, Sept. 3, will be given over eutirely to sports. A 2:40 horse race, pnrse $30, and a free-for-all horse race, pnrse $30, half mile heats in each race ; bioycle races, foot races, men 's three legged races, ball games, and greased pig. See large bilis.