INDEX. 



807 



Inooeramus Barahini, 469 



bitorniis, 468. 



Brongniarti, 476. 



capulus, 468. 



concentricus, 476. 



confertim-annulatus, 468. 



Crispii, 476. 



Cuvieri, 476. 



latus, 469, 476, 477. 



mytiloides, 476. 



obliquus, 433. 



problematicus, 457, 461,* 467, 

 468, 477, 501, 508. 



pseudo-mytiloides, 468. 



rectangulus, 433. 



striatus, 476. 



sublevis, 468. 



sulcatus, 476. 



umbonatus, 46S. 

 Inorganic kingdom, 48. § 

 Insecteans, 121. § 

 Insects, 121,§ 331, 351, 360, 

 483, 500, 592, 596, 608, 613. 



first of, 273. 



culmination of, 598. . 



most easily fossilized, 613. 



range of, in time. 388.* 



Carboniferous, 335, 351. 



Devonian, 273, 274. 



tracks of, in Triassic, 411,* 

 416. 

 Insectivores, 486, 506, 510, 

 519, 520. 



range of, in time, 589.* 

 Insular climate, 43. 

 Integripallial, 189.§ 

 Interior Continental region, 146. 

 168, 183, 184, 196, 210, 231, 

 251, 267, 275, 276, 279, 291, 

 294, 321, 355, 359, 367, 370, 

 373, 380, 390, 391, 392, 401, 

 480. See Western Interior. 



fire-seas, 722. 

 Intrusive rocks, 63. § 

 Invertebrates, 116. § 



Age of, 139, 162. 



only animal life of Primordial, 

 169. 

 Iowa, Carboniferous in, 291. 



Chazy in, 182. 



Cincinnati in, 197. 



Cretaceous in, 455. 



Hamilton in, 267. 



lead mines of, 197. 



Lower Silurian in, 210. 



Niagara in, 221. 



Quaternary in, 528, 529. 



rocks of, 377. 



Subcarboniferous in, 293,294, 

 303. 



Trenton in, 196. 



Upper Helderberg in, 256. 

 Ireland, Carboniferous in, 345, 

 346. 



Devonian in, 282. 



eruptions in, 525. 



in the Quaternary, 555, 572. 



Jurassic in, 433- 



peat-beds of, 616. 



Permian in, 369. 



Silurian in, 244. 



Subcarboniferous in, 306. 

 Ireleth slates, 244. 

 Iridea edulis. a«h of, 61. 

 Irish deer, 564, 565, 571- 

 Iron, 51, § 365. 



abundance of, 737. 



in plants, 364. 

 Iron Age, 574. 



Iron hat, 734. 



Mountain, 151. 

 Iron-bearing rocks character- 

 istic of Archaean, 151. 

 Iron ores, 59,§ 74,§ 688. 

 Iron ore, fossiliferous, 231. 



in Archaean, 153. 



in Carboniferous, 293, 318. 



argillaceous, in Clinton group, 

 220, 231. 

 Ironstone, 318. 

 Isastraea explanata, 449. 



oblonga, 449. 



Stricklandi, 448. 

 Ischypterus, 417. 

 Ischyromys, 511. 

 Isinglass, 53. § 

 Isis nobilis, 60.§ 

 Island-chains, curves in, 30,* 



31,* 32* 34. 

 Islands, Coral, 618. 



in rivers, 651.§ 



oceanic, 14. 



parts of continents, 14. 

 TsleofMull leaf-bed, 513. 

 Isocardia, 475. 

 Isocrymal chart, 41. § 

 Isoetes, 270. § 

 Isonema depressa, 274. 

 Isopods, 120,* 122. § 

 Isotelus gigas, 204. 

 Isothermal chart of the ocean, 



41. § 

 Isothermal lines, Cretaceous, 

 481. 



Tertiary, 526. 

 Isthmus of Darien, 659, 756. 

 Itacolumyte, 73.§ 

 Italy, Cretaceous in, 470. 



changes of level in Serapis, 



_ 584. 



in the Quaternary, 573. 

 lulus, 342. 



Ives, on the Colorado, 641.* 

 Ivory, fossil, 565. 



Jackson, C. T., on Rhode Island 



Carboniferous, 319. 

 Jackson group, 494. 

 Janassa bituminosa, 372. 

 Janira hemicyclica, 511. 

 Janthina, 243. 

 Japan, Tertiary in, 512. 

 Jasper, 53, § 74. § 

 Java, Tertiary in, 512. 

 Jelly-fish, 117.§ 

 Jenzsch, G., analysis of phono- 



lyte, 77. 

 Jet, 62.§ 

 Joggins, Carboniferous at, 319, 



337. 

 Johnson, W. B., analyses of 



coal, 316. 

 Johnson, S. W., formation of 



coal, 364. 

 Jointed structure, 88. § 

 Joints, origin of, 741. 



in the Hamilton, 267. 

 Jones, T. R., on Estheria, 



416. 

 Juglans, 459. 497, 498, 515. 



appressa, 498. 



acuminata, 498. 



denticulata, 499. 



Schimperi, 499. 

 Jukes, on Irish Devonian, 282. 

 Juniperus, 450. 

 Jura Mts., bowlders on, 533. 



Cretaceous in, 470. 



Jura Mts., Jurassic in, 434 

 Jurassic period, 431. 



Kankakee Swamp, 560. 

 Kanawha Salines, 321. 

 Kangaroo-rat, 448. 

 Kansas, Carboniferous in, 29L 

 320. 



chalk in, 455. 



Cretaceous in, 456. 



Permian in, 367. 



Triassic in, 423. 

 Kaolin, 695.§ 

 Kaskaskia limestone, 294. 

 Katahdin, height of, 530. 

 Kelloway rock, 435. 

 Kendall group, 244. 

 Kent's Cave, 564, 576. 

 Kentucky, Carboniferous in, 

 291, 314, 321. 



Hamilton in, 267. 



in the Carboniferous, 354. 



Quaternary in, 528. 



Subcarboniferous in. 293, 294, 

 304, 305. 



terraces in, 548. 



Tertiary in, 493. 



Upper Helderberg in, 256. 

 Keokuk limestone, 294, 305, 



377, 378. 

 Keuper, 424, 429. 

 Keweenaw Point, copper of, 185. 

 Kilauea, 705,* 706 * 710, 715, 



722, 723. 

 Kimmeridge clay, 433. 

 Kimmeridgian group, 435. 

 Kinderhook group, 294, 305, 



377, 378. 

 King, A. T., on Carboniferous 



footprints, 343. 

 King & Rowney , on Eozoon, 159. 

 King, C, on Triassic in Rocky 

 Mts., 406. 



on Wahsatch and Uintah 

 Mts., 453. 

 Kingdoms of nature, 1. 

 Kirkdale Cavern, 564. 

 Kitchen-middens, 562, 577. 

 Kittanning Coal-bed, 311. 

 Kjokken-mbddings, 562, 577. 

 Knox group, 163, 379. 



sandstone, 163. 

 Koninckina, 171. § 

 Kbssen beds, 425, 429. 

 Knorria, 307, 348. 



acicularis, 283. 



imbricata, 283, 297. 

 Kraussia, 171, 174. 

 Kupferschiefer, 369. 

 Kupffer on composition of 



Obolus, 61. 

 Kutorga on Russian Devonian, 



283. 

 Kutorgina cingulata, 177, 250. 

 Kyanite. See Cyanite. 



Labrador current, 40, 208, 534, 

 552, 554. 658. 

 fiords in, 534. 

 Primordial in, 167. 

 terraces in, 550. 

 Labradorite, 54. § 

 Labyrinthine structure of 



Ganoid teeth, 264,* 338. 



Labyrinthodon, 427,* 428. 



Labyrinthodonts, 337,338,§ 349, 



351, 427,§ 484, 598, 599. 



a comprehensive type, 382. 



in Triassic, 412. 



