Show Absorptive Sand Silica gel a n processed sand with n very high moisture absorptive quality is now being used in cupboards cupboards cup- cup boards to keep salt sugar and crackers crockers dry in drawers to preserVe preserve pre pre- serve important papers and in cabinets to prevent the rusting of ot tools and instruments says Col- Col ColI I irR Uy Ily turning from blue to toI pink the sand ond indicates that It has rent reached lied the tho moi moisture lure limit Umit and I taunt must be dried in on an oven |