.920 57.5 .903 56.437 1.009 63.06 3.000 187-5 5.614 350.9 6 100 381.25 4 948 309.25 18.680 1167-5 23 000 1437-5 7.15 446. Gamboge.. common, 3.576-4 common window, crown. green white... hornblendic. Granite, Egyptian red. Patapsco.. Susquehanna, Pt. Deposit. Gravel, about equal to sand.. Greenstone, (trap) 2.8-3.2. in loose piles. native pure. 1.222 76.5 Ice at 320 F. silver.. 2.520 157 5 lead 2.530 158. 1 Lodine... 2.642 165.1 Iridium, cast by electric battery 2.880 180.0 hammered.. 3.450 215.6 Iron, cast, 6.9-7.4 2.892 180.75 at 450 lbs to the foot, 8601.6 2.690 168. cub. in. will make a ton. 96. Iron, wrought, 7.6-7.9... 2.8 175. “: magnetic oxide. 2.654 165 9 cast, gun metal. 2.640 165. hot blast. 2.630 164.4 cold blast. 2.652 165.75 wire.. 2.625 164.06 rolled plates.. 2.704 169.00 “ large rolled bars. 1.749 109.31 Ironstone, 3. 28-3.573.00 187. Iron wood 107. Isinglass. 2.143 133.94 Ivory 19.258 1204. 19.32 1206. J 19.50 1217. 17.486 1093.o Jackwood. 15.709 982.0 Jasmine. 1.452 90.75 Jasper, 2.358-2.816. .843 52.69 Jei.. 62 5 Juniper. .900 L 1.000 62.5 Lance wood 1.675 104.7 Larch .980 Lard... 2.305 144. Lead, cast 82. rolled. Lemon tree Lignum-vita 7.77 485. 20 .670 42.0 .770 48.125 2.587 161.7 1.300 81.25 0.566| 35.37 1.000 56.25 5 44-5.60. 61.I lb water. 66 Gum Arabic. shaken. SI 550 1 1.800 Gutta percha. Gypsum (plaster of Paris) av.. in lumps. ground, loose (st. bush. sa lhs) .720 45 .552 34.5 .947 59.2 11.352 709.5 11.388 712.0 -703 43 94 1.333 83.31 .804 50.25 .843 52.7 2.745 171.5 57. 64. 75 2.75 172. A manual of engineering specifications and contracts Lewis Muhlenberg Haupt (65.. solid Hemlock... shell bark. .368 .792 .690 23.0 Lithium .604 37.74 |