1. APPARATUS FOR THE PRODUCTION OF MALT, UTILIZING A COLUMN, WHEREIN THE MATERIAL TREATED PASSING VERTICALLY THROUGH SAID COLUMN BY ITS OWN WEIGHT IS SUBJECTED TO DIFFERENT TREATMENTS, CHARACTERIZED IN THAT THERE IS PROVIDED IN SAID COLUMN A PLURALITY OF GRIDDS ONE ABOVE THE OTHER, EACH GRID EXTENDING TRANSVERSELY OF THE ENTIRE INSIDE DIAMETER OF SAID COLUMN AND CONSISTING OF A SINGLE LAYER OF RODS IN SIDE-BY-SIDE RELATIONSHIP, THE RESPECTIVE ADJACENT RODS OF EACH GRID BEING CAPABLE OF BEING SET IN OPPOSING HORIZONTAL MOTION, THE MUTUAL SPACING OF