Gwennap tin mines, 440.
Gypsum of sea-water, how formed, 60.
in Salina Group, 125.
origin of beds of, 297.
(C
"C
"C mode of occurrence of, 302.
Hadrian, coins of, with living seeds, 260.
Hadrosaurus Foulki, 192, 193.
Hairy mammoth with man, 358, 359.
Halcyonoids, 327.
Iberian tribes, 363.
Ice, reign of, 213.
Ice-born torrents, 222.
Ichnolites, 183.
Ichthyosaurs, 174, 318.
Ichthyosaurus, 178, 179.
Ideas, dominant, 318.
[C
แ
Hall, James, on Potsdam sandstone, 78.
"Lower Helderberg, 125.
"Mesozoic geology, 210.
"Niagara Falls, 245.
central heat, 434.
"[
"L
"L
[C
"L
(C
(C
((
Hamilton Group, 126, 127.
((
[(
Ideas in fixed succession, 324, 328.
Identical thoughts repeated, 328.
Immediate Divine agency, 420.
Igneous rocks of Fingal's Cave, 34
fluidity of the earth, 49.
Iguanodon, 99, 188, 189.
as a source of oil, 289. Illinois prairies, 265.
Hamites, characters of, 119.
River, 269.
Harrison on buried firs, 253.
Hatchets of flint, 356.
Hawkins, B. W., Restorations by, 192.
Hayden, F. V., on Mesozoic geology, 210.
Heat, central, doctrine of, 433.
แ
66
agency of, in rock formation, 32.
dispensed by the sun, 408.
،،
"
solar, destined to be exhausted, 411.
CC how sustained, 410.
"L
""
(6
amount of, 422.
(C
developed by percussion, 410.
Heights of the lakes, 243.
Helderberg group, Lower, 125.
Mountains, 125.
"C
Helmholtz on cooling of the sun, 411.
destiny of solar system,
(C
(C
420.
Herpetarchy, 176.
Herpetoid birds, 184.
Herschel, Sir William, on nebular hypoth-
esis, 41.
Herschel, Sir William, on firmaments, 425.
Herzer, H., on fossil fishes, 127.
Heterocercal tails, 165, 326.
Higher level of the lakes, 241, 244.
Highland Rim, in Tennessee, 341, 342.
Hilgard, E. W., on Petite Anse, 306.
Hindoo cosmogony, 383.
Hitchcock, C. H., on Maine, 126.
"L
Dr. E., on footprints, 168, 182,
185.
Hitchcock, Dr. E., on drift phenomena,
217.
Hohenberger mines, 439.
Hollow bones of reptiles, 185, 189.
Holmes, F. S., on human relics, 356.
Homocercal tails, 165, 326.
Hooker on insular floras, 369.
Hopkins, E. and W., on central heat, 435.
Horner on Gulf Stream soundings, 404.
Horse a native of America, 210.
Houghton, D., on Michigan geology, S2.
Hunt, T. S., as a chemical geologist, 58.
(6 on petroleum, 289, 290.
"central heat, 433.
Huron, Lake, a modifier of climate, 227.
Mountains, 339.
*C
"C
C6
"L
Huronian system, 64.
Hydrarchos, 204.
Hydrographic changes in China, 369.
Hyera, upheaval of, 23.
Implements of primeval man, 352.
Incandescent terrestrial matter, 36.
Indians and prairies, 266, 271.
Indian and mastodon, 240.
Indians on secular revolutions, 383.
Indian-summer, 271.
Inferiority, criteria of, 323.
Infinity, borders of, 423.
Intellect stimulated to action, 336, 373.
of primeval man, 363.
"C
((
correlated to the universe, 373.
Intelligence in Nature, see Mind.
Intermittent oil wells, 285.
Intuitive sentiments, 391.
Inundation of prairie region, 269.
Ionics on periodical catastrophes, 386.
Irish elk, 354, 355.
Iron Age, 353.
"-bearing rocks, 64.
"L
Mountain, Missouri, 106.
Islands, upheaval of, 23.
Isle Royale, S4.
Ives, Lieutenant, on Colorado, 345.
King, Dr., on footprints, 168.
Kjæk kenmæddings, 360, 364.
Hydrographic outlines of N. America, 96. Knox County, Ohio, gas well in, 283.
66
((
(C
Koch, Dr., on Zeuglodon, 204.
prehistoric man, 356.
Koninck on Pentacrinus, 321.
Kuttenberger mine, 440.
46
(C
Laboratory of Nature, 282.
Labyrinthodonts, 168, 171, 172, 173, 317.
a synthetic type, 318.
Lacustrine origin of prairie soils, 268.
sediments without germs, 270.
La Denise Mountain, 356.
Lælaps aquilunguis, 191, 192.
Lagoon, Continental, 94, 105.
Lake Superior, geology of, 78, 82, 84, 339.
outlines of, 84.
"L
(6
CE
"L
(
(L
"L
((
"L
"
"L
basins excavated, 220.
where located, 225.
habitations, piles in, 257.
"L
Lakes, the great, geology of, 124.
66
40
46
"L
"C
"L
(C
in Mesozoic times, 196.
glacier action near, 215.
why not salt, 295.
from freshening of seas, 204, 232.
related to ancient shores, 224.
of Central New York, 225.
influence of, on climate, 225.
small, how formed, 236, 237.
filled up, 237.
former high water of, 241.
Lamellibranchs, 316.
Lancashire, fens of, 253.
Land, first emergence of, 72.
Landscape, ideal, of Devonian Age, 130.
"Carboniferous times,
CL
*
150, 158.
Landscape, ideal, of Reptilian Age, 177,
181.
Lapham, J. A., on climate, 226.
Laplace, nebular hypothesis of, 41.
on mean day, 403, 418.
Lapps, 363.
CC
Laramie limestone, 136.
Lartet on human remains, 355, 357, 366.
Lasalle, Illinois, mines at, 439.
Last term of organic existence, 373.
man, 113.
"L
Laurentian system, 63, 33S.
CC estuary, 235.
Life, even in Laurentian, 68.
66
..
46
Laws of Nature, 395, 420.
Leaves of plants, arrangement of, 328.
Lectonia of the New World, 200.
C
ancient, 369.
Leidy, Dr., on reptiles, 178, 190.
"L
CC
"mammals, 210.
Lemout, Illinois, old river bed at, 269.
Lepidodendron, 157.
"L
a synthetic type, 318.
Lepidosteus, 166, 320.
Huronensis, 120.
oculatus, 120.
[C
CC
Lescarbault and intramercurial planet,
44, 330.
Lesquereux, L., on fossil vegetation, 254.
Level of lakes formerly higher, 241.
Leveling of the mountains, 397.
Liège, human remains at, 355.
Life, a ray of, 65.
(C
power of, to resist extremes, 5€
front of the procession of, 73, 315.
various conditions of, 98.
programme of, 102, 315.
Lifetime of a universe-what is it? 430.
Light, movements of, 421.
Lightnings in the primeval storm, 54.
Ligurian tribes, 363.
Lilies, Stone, 105.
Limestones of chemical origin, 59.
recurrences of, 133.
"
"C
"C
Limestone masses of N. America, 134, 224,
trends of, 135.
Lindley on vitality of seeds, 260.
Lindsay on vitality of bulbs, 261.
Lingula, modern, 79.
Lingula prima and antiqua, 79, 316.
Lithodomus, a stone-borer, 19.
Lithological recurrences, 132.
Lockport, geology of, 125.
Logan, Sir W. E., on ancient limestones,
58.
Manitoulin Islands, 124.
"L
(6
Mantell, Dr., 182, 189.
Marcellus shale, 127.
"
(C
as a source of oil, 289.
Marcou on Niagara Falls, 245.
Mariacrinus, 125.
Maritime plants suddenly appearing, 257.
Marl, origin of, 238.
Marquette, glacier action at, 215.
Marsh, G. P., quoted, 252, 253.
Marsh, O. C., on reptiles, 170, 186.
Marshall Group, 129, 131, 165, 439.
"C sandstone as a reservoir
brine, 297.
Martins, Charles, on deep sea
tures, 444.
Mastodon and mammoth, 239.
Matter, forms of, 37.
Mauvaises terres, 205, 206.
Mayer on variability of the day, 406.
"solar heat, 422.
С،
Mediterranean Sea in America, 196, 199.
Meek, F. B., ou Permian rocks, 172.
(6 "Mesozoic and Cenozoic
fossils, 210.
66
Megalonyx Jeffersoni, 255.
Megalosaurus, 188.
Melleville on primeval man, 356.
Menander on secular catastrophes, 384.
Menu, Institutes of, on cosmogony, 383.
Metamorphism of rocks, 33.
Metamorphoses of Ovid, quoted, 39.
Meteorites, 410.
Mines, ancient, in Spain, 257.
""
depth of, 439.
"6
Method in continental growth, 94, 307.
"history of life, 98, 102, 314.
"coal-making, 160.
CC
Michigan as an oil region, 290, 291.
66 salt wells of, 304.
Michigan, Lake, geology of, 225.
CC
"L
(L
،،
à modifier of climate,226.
former outlet of, 269.
Miller, Hugh, 129.
66
portrait of, 137.
Millstone grit, how formed, 153.
Millstones in primeval times, 365.
Milwaukee, geology of, 125.
Mind in Nature, 16, 98, 104.
Mine, descent to, 139.
376.
Morlot on antiquity of man, 368.
Mornings of eternity, 431.
Mosasaurus, 190.
"(
Motion characterizes Nature, 392.
is mechanical, 394.
Mounds, burial, 260, 350.
tempera-Mountains to be leveled, 397.
Multiplication of similar parts, 323.
Murchison on gneiss, 58.
(6
(C
Miners' Castle, Pictured Rocks, 86.
Mining and miners, 143, 146.
Mining implements, ancient, of Lake Su-
perior, 257.
Mining implements in Spain, 257.
Mining of timber in New Jersey, 257, 258.
Minnesota Mine, Michigan, 440.
Missionary Ridge, 342.
Mississippi River, geological relations
of, 96, 235.
Molluscous animals, 102.
"
CC
Mississippi River, sediments of, 398.
"C
Group, 136.
(3
Valley, effect of depression
in, 25.
Missouri River, origin of, 201.
Moa, 368.
Moisture as a cause of prairies, 266.
order of, 316.
Molten period of the earth, 36.
Monadnock, marks of submergence on,
229.
Montreal, terraces at, 230.
Moral nature of primeval man, 363.
inan differentiates him,
CC
C
(4
gold regions, 335.
Museum of University of Michigan, 176.
"Yale College, 186.
64
British, 186.
Amherst, 186.
Wood's, 203.
Naked reptiles, 167.
Nantucket, change of level at, 22.
"L
(6
Nashville, Tennessee, situation of, 341.
geology of, 341.
Nature, interpretation of, 15.
mind in. 16.
"L
((
Nautilus, the Paper, 110.
Pearly, 114.
Nautilus pompilius, 114.
Nebulæ, 425.
Nebular hypothesis, 41, 42.
Neptune and world-harmonies, 329.
Nescience in geologic theory, 434.
Nevada, salt-beds of, 295.
Newberry, J. S., on fishes, 127.
"reptiles 170.
((
"L
"L
66
"6
"L
"fossil vegetation, 254.
"petroleum, 288, 291.
"Colorado River, 345.
New Brunswick, change of level in, 22.
"Jersey, change of level in, 22.
cretaceous reptiles in, 190.
New Red Sandstone, 168.
Newton on comets, 409.
""
"L
66
"resisting medium, 418.
Niagara limestone, 123.
"
((
mass, 134.
as an oil rock, 280.
(6
""
..
(6
phy, 224.
Niagara Gorge, 243.
"
age of, 245.
Nilsson on primeval man, 363.
Noble Oil Well, 274.
Noquet, Bay de, 124.
North Carolina, change of level in, 22.
Nova Scotia, coal-measures of, 155.
Nucleus of the earth, shrinkage of, 199.
Occupations of primeval man. 363.
of Mesozoic Time, 201.
ancient gorge of, 220, 235.
a key to ancient geogra
Ordinal groups, succession of, 316.
(C types, 324.
Oreodon Culbertsoni, 208.
Organic types, succession of, 315, 316.
Orient the birthplace of man, 362.
Oriskany sandstone, 126.
Ormoceras tenuifilum, 115.
Ornaments in primeval times, 359.
Ornithichrites, 168, 182.
Orographic outlines of N. America, 96.
Orpheus on the Great Year, 3S3, 3S4.
Orthoceratites, 109, 115, 120, 316.
Oscillations of the land, 19.
"L
in United States, 22.
"C
in ancient times, 152.
"C
use of, in coal-making, 161.
Ostracoid crustaceans, 318.
Outlet of lakes formerly obstructed, 242.
Ovid, quotation from, 39.
Owen, D. D., on Potsdam sandstone, 79.
،، "Mesozoic geology, 210.
"Kentucky geology, 255.
portrait of, 211.
"C
"
""
"
66
287.
Petroleum regions in U. States, 288, 292.
Phascolotherium, 189.
Phoenix, fable of, 386.
Phyllotaxy, 328.
Physics, wonders of, 422.
Pictou, reptiles at, 169.
Pictured Rocks, Lake Superior, 85.
Pile-habitations, 352, 360, 364.
Piles of London Bridge, etc., 256, 257.
Pines succeeding hard-wood forests, 252.
Plan, see Method.
Plans of animal structure, 101, 175, 314.
Planets, genesis of, 44.
(C
rr
Plants
may still be thrown off, 44.
periodic times of, 329.
before animals, 66.
first tree-like, 127.
CC
((
appearing in new localities, 250,
Plato on catastrophes, 386.
Plesiosaurus, 178, 179, 318.
Plum-seed long preserved, 262.
Poisson on cooling of the earth, 403.
Polyps and coral reefs, 326, 327.
Polypterus, 320.
Popol Vuh of the Aztecs, 387.
Porcupine Mountains, 339.
Porites, 327.
Portage Lake, Lake Superior, 85.
Portland (Connecticut) quarries, 182.
Positivism in geologic theory, 434.
Pot-holes in ancient river-beds, 269.
Potsdam group, 76.
"C
(C
CC
((
sandstone in New York, 77.
extension of, 78, 94.
period, climate of, 105.
Pouillet on central heat, 403.
Poulp, 111.
Power, Madam, 111.
Prairie, sketch of, 264.
Prairies and their treelessness, 264.
origin of, 266.
(C
Prehistoric man, 351.
Primeval storm, 55.
Primordial earth, 38, 307, BOS.
Problems ever present to man, 380.
Procession of organic forms, 315.
man, 357.
Quadrupeds, European, with primeval
man, 354.
Quantities of oil discharged, 286.
Quiches, National Book of the, 387.
Radiated animals, 102.
(6
Rain, the first, 54.
Ramphorhynchus, 183, 184.
Raniceps Lyelli, 170.
Raspberry seeds in ancient tomb, 260.
Recession of Niagara Falls, 245.
Reconstruction of extinct forms, 175.
Reef-building polyps, 327.
Refrigeration of the earth, 403.
Reid, Dr., on the course of Nature, 391.
Reign of fishes, 164.
<<
66
(C
،،
reptiles, 173.
mammals, 199.
"ice, 213.
፡፡
Reindeer epoch, 353, 357.
(L folk, 357.
Safford, J. M., on Tennessee, 341.
Saginaw Bay, 246.
"
salt wells, 304.
Salamander, 167.
Saliferous system, 296.
،، order of, 315.
Radiation of heat from the earth, 403, 404. Salina period and group, 125, 297.
sun, 408.
"C
"6
"L
(C
salt basin, 303.
Salisburia, 321.
،،
extinction of, 360.
Religious nature of primeval man, 366.
Renovation of continent, 219, 349, 401.
Renovations and destructions in Nature,
381.
Replenishing of solar heat, 409.
Reptiles, earliest, 166.
66
(C
(C
(C
reign of, 166, 173.
classification of, 167.
geological history of, 168.
oldest in United States, 170.
(( former abundance of, 194.
geography of empire of, 195.
Reptile type unfolded, 317.
Reptilian idea dominant, 318.
Reservoirs of water in drift, 232.
petroleum, 282.
(C
"C
CC
Rest, forces tend toward, 393, 396.
Resurrection of matter, 429.
"L
Retardation of earth's rotation, 405.
"heavenly bodies, 419.
Retrospective types, 320.
Salt, common, its origin in the sea, 60, 296.
works at Mason City, 294.
(C
"universality of, 294.
(6
and gypsum, 294.
፡፡ the residuum of the ocean, 295.
66
"L
(C
lakes, 295.
plaius, origin of, 295.
beds of Nevada, 295.
"region of Europe, 296.
(C
geology of, 296.
(L
in coal-measures, 296.
(( not attributable to secondary action,
297.
Salt formations, origin of, 297.
"C
CC
of U. States, 303, 304, 305
"accumulation of, 298, 299.
basins, 299.
springs often illusory, 299.
"where to bore for, 299.
in Michigan, 304.
"in Salina group, 125.
((
at Petite Anse, 306.
"wells not artesian, 300.
Sand, glacial, 213.
Sandstone, Old R 1, 131.
Sandstones of Venango County, Pa., 275.
Sandusky, geology of, 126, 165.
Santorin, new island of, 23.
Satellites, origin of, 45.
Saturn and his rings, 45.
(C
"world-harmonies, 829.
Sauropus primævus, 188.
Savoy Place and its piles, 257.
Scenes in a coal mine, 141.
Schmerling on primeval man, 355.
Schoolcraft on Pictured Rocks, $7.
|