Use large salad mold or 9 x 13 inch loaf pan. If using loaf pan, put blue layer on bottom. If using mold, prepare red layer first. RED LAYER: Dissolve 1 package raspberry Jello in 2 cups hot water. Pour into pan and chill until set. WHITE LAYER: Heat 1 cup half and half and 1 cup white sugar to boiling. Add 1 package Knox gelatin which has been dissolved in 3 tablespoons cold water. Stir until dissolved. Pour over 8 ounce package cream cheese and beat until smooth. Add 1/2 cup chopped pecans. Cool and pour over first layer. Chill until set. BLUE LAYER: Drain 1 (16 ounce) can blueberries saving liquid. Add water to blueberry liquid to make almost 2 cups. Heat and dissolve 1 package blackberry Jello in liquid. Add blueberries. Cool and pour over cream cheese layer. Prepare blueberry layer first if using loaf pan. | 
