Preheat oven to 325 degrees F. Grease a 9 X 5 X 3-inch pan. Combine flour, wheat germ, brown sugar, salt and raisins in a mixing bowl. Mix well. In a second mixing bowl, mix baking soda, buttermilk and molasses, using a wooden spoon. This misture will start to bubble. Immediately mix it into the dry ingredients. Spoon the batter into the greased pan. Bake at once. The bread is done when a toothpick comes out clean, about 1 hour. Turn out of the pan and cool on a wire rack. Makes 1 loaf.