1. Preheat oven to 350 degrees F (175 degrees C). Lightly grease an 8x4 inch baking pan. 2. In a medium bowl, combine the dates, figs, butter and baking soda. Pour in the boiling water, stir well and let stand for 15 minutes. 3. Beat the Sugar, walnuts and eggs into the date mixture. Combine the all-purpose flour, whole wheat flour, baking powder and salt; stir into the date mixture just until blended. Pour batter into prepared pan.