d. A 15,000 pound shipment of stoneware china in crates with a released value of $1.50 per pound and a density of 28 pounds per cubic foot e. A 1,200 lb shipment of paper towels, in boxes, with a length of core of 9 inches. f. A 9,000 pound shipment of air heaters, other than portable with fans and with accessories in packages having a density of 5 pounds per cubic foot