Fertilizer Materials, having value only for fertilizer purposes or for nitrogen content, viz.: Cake, tung nut oil; Clippings, felt; Hoofs, animal; Horns, animal; Meal, tung nut oil; Refuse, fur or fur piece; Scrap, felt; Shavings, taken from hides during tanning process; Sludge, sewage, dry; Stumps, animal horn; Waste, animal horn; Waste, cartridge; Waste, felt; Waste, fur or fur piece; Waste, mustard seed; In packages