The Mechanical Handling and Storing of Material

728 THE MECHANICAL HANDLING OF MATERIAL Lb. per Cubic Foot. Cubic Feet per Ton. Lb. per Bushel. Oats ----- 30 75 40 Oat meal - - 39 57-5 50 Ore, pulverised, average - - - 220 10 Oxide of iron - - - - - 55 40 ... Paper (wet) as from revolving used for making paper boards drums 57 38-9 Peas ----- - - 50 45 64 Pea meal - - - 43 52 56 Peat, dry - - - 11 200 Phosphate - - - 100 22-22 Phosphate meal - - 110 20 Pitch ----- - - 60 37 Plaster - - - - - - 98 23 Plaster of Paris - - 105 21-25 Plumbago - - - 140 16 Portland cement - - 86 to 90 26 to 22-6 Portland stone - - 150 15 - *Portland stone, broken - - - 142 15-8 Potatoes ----- - - 47 48 60 Quartz ----- - - 150 15 * Quartz, broken - - 142 15-8 Quartz sand - - - - - - 170 13 Quick lime - - 53 42 Rape seed - - - 36 61 40 Rye ----- - - 41 55 53 Salt, rock, solid - - 131 17 Salt, dried - - - - - - 56 40 Salt, cake - - - 70 32 Salt, fine - - - 42 52 56 Salt, coarse - - - - - - 45 50 Sand, river - - - . - - 117 19 Sand, pit, fine - - 95 23-5 Sand, pit, coarse - - 100 22-5 Sand, moulding - - 77 29 Sandstone, solid - - 150 15 *Sandstone, broken - - - 140 16 Shingle - - - - - - 88 24-5 Slate ----- - - 157 14-2 Snow, fresh fallen • - - - 6 380 Sugar, lump - - - - - - 60 37-5 Sugar, crystal - - - - - - 56 40 Sugar, fine - - - 55 40-7 Sugar, brown - - - - - - 56 40 Timothy seed - - - - - - 35 63 45 Turnips ----- - - 43 52 55 Water, fresh - - - - - - 62-42 35-88 Water, sea - - - 64 35 Wheat ----- - - 47 48 60 Yorkshire stone - - 154 14-5 *Yorkshire stone, broken - - - 142 15-9 The weights of these materials are only approximate, and vary greatly with the size of the pieces.