” seasoning, 69, 70, 90, 91 ” panelling, if not seasoned, shrinks, 288 ” how to prevent splitting, 106 Ohio fire-proof paint, 185 Oil, Arracan, to protect wood from ants, 252 ” boiled, to preserve planks of ships, 111 ” castor, with cow-dung mortar, 251 ” cajeput, to protect wood from ants, 247, 286 ” of cedar, to protect wood from worms, 106 ” cocoa-nut, to preserve wood, 107 ” ” and other substances, 107 ” dammer, and other substances, 255 ” fish, 108 ” ” experiments with, 108 ” ” and other substances, 108 ” linseed, 106 ” ” and other substances, 106, 165, 268, 284, 285 ” olive, 106 ” of juniper, to prevent worms, 285 ” of mustard, to preserve wood, 107 ” of spikenard, 106, 285 ” of tar; and other substances, 123, 155, 162 ” of tar--_see_ Coal Tar ” palm, to preserve wood, 106, 107 ” ” and other substances, 123 ” paraffin, to cure dry rot, 285 ” petroleum, to preserve wood, 109, 157, 169, 262, 287 ” ” and sand, 109 ” vegetable, best to preserve wood, 106 ” whale, 286 ” ” renders wood brittle, 106 ” ” and other substances, 106, 107 ” and other substances, 156, 167 Oils, animal, render wood brittle, 107 Oxford’s patent, 123 Painting, house, described, 199 ” ” causes rot, 183, 185, 269 ” how to remove from carvings, 270 Paling, rot in, 185 Pallas’ iron and lime process, 117 Panthéon, Paris, dry rot in dome, 42 Parkes’ caoutchouc process, 162 Parry’s (Dr.) suggestion to prevent rot, 156 Passez’s caoutchouc in sulphur process, 162 Pasteur, researches of, 17 Patents, most successful patents, 169 Payne’s patent process, 144, 154, 156, 223, 254 Peat moss, for seasoning wood, 116 Penrose’s report on carvings, St. Paul’s Cathedral, 271 Pepys, Memoirs of, account of rot in ships in, 24 Pering on dry rot, 25 Petersburgh deals, white and yellow, 38, 66 Petroleum oil to prevent rot, 109, 157, 169, 262, 287 Phillips (R.), on seasoning oak, 70 Piles, timber, 23, 96, 219, 221, 223, 226, 228, 285 ” ” cased in iron, 229 Pine, yellow, liable to rot, 43 Pitch, 96, 174, 224 ” and other substances, 107, 159 Pith of tree, formation of, 4 Pliny, on salt-water seasoning, 72 Polyporus hybridus fungi, 21 Porcher (Dr.), on seasoning wood, 75 Posts, experiments with, 45 ” in Norway, how preserved, 173 ” burning ends to preserve, 96, 98 ” where they decay, 24 ” coating, to preserve, 161 Potash, and other substances, 166, 167 Price and Manby’s drying stove, 88 Pringle (Sir J.), on the strength of alum, 119