We preview a special musical presentation of the Kevin Henkes children's book "Julius, Baby of the World" which will be performed this weekend by the Racine Choral Arts Society, under the direction of Jim Schatzman. (Henkes is a Racine native.) The book tells the entertaining and ultimately heartwarming story of a young girl named Lily and her baby brother Julius, whom she at first dislikes and resents but whom she comes to eventually love.