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TABLE OF CONTENTS. ' Page 6. Magnetic Ironstone. Common Magnetic Iron stone, - 222 Iron-Sand, - 228 Earthy Magnetic Iron- stone, - 231 7. Specular Iron-Ore, or Iron-GIance, - 232 Specular Iron-Ore, or Common Jron Glance, 233 Iron-Mica, or Micace ous Iron-GIance, 240 8. Red Ironstone. Scaly Red Iron-Ore, 243 Ochry Red Ironstone, 245 Compact Red Ironstone, 247 Red Hematite, 250 0. Brown Ironstone, 253 Scaly Brown Iron-Ore, 254 Ochry Brown Iron stone, - 256 Compact Brown Iron stone, - 258 Brown Hematite, 261 10. Umber, - 266 IT. Black Ironstone. Compact Black Iron stone, - 268 Black Hematite, 269 12. Sparry Ironstone, 271 VII. Order, 1. Grey Manganese-Ore. Fibrous Grey Manga nese-Ore, * 815 Page 13. Clay Ironstone, 276 Reddle, - 277 Columnar Clay - Iron stone, - 279 ' Lenticular Clay-Iron- stone, - 281 JasperyClay-Ironstone, 284 Common Clay - Iron stone, - 285 Reniform Clay-Iron stone, - 289 Pisiform Clay - Iron stone, - 291 14. Bog Iron-Ore. 293 Morass-Ore, or Friable Bog Iron-Ore, 294 Swamp-Ore, or Indu rated Bog Iron-Ore, 295 Meadow-Ore, or Con- choidal Bog Iron- Ore, - 296 15. Pitchy Iron-Ore, 299 16. Blue Iron-Ore. Foliated Blue Iron-Ore, 301 Fibrous Blue Iron-Ore, 303 Earthy Blue Iron-Ore, 304 17- Chromate of Iron, t 307 18. Cube-Ore, or Arscniate of Iron, - 309 19- I’yrosmalite, or Native Muriate of Iron, 311 Manganese. Radiated Grey Man- ganese-Ore, 317 Foliated