Page:This Journey through the Pure Food Factories (1906).djvu/27



particles of the phosphate of potash found in certain parts of the natural grains of the field.

This is the element which combines with albumen to form the gray matter in the brain, solar plexus, and in the delicate nerve centres throughout the body. It is for this reason that both Postum and Grape-Nuts quickly rebuild a broken-down nervous system. The beverage and food are of inestimable value to those depending upon mental exertion for livelihood. Personal