Textbook of Geology Part I—Physical Geology. 4th Edition, by C. R. Longwell, A. Knopf, and R. F. Flint, 1939, John Wiley and Sons. A standard text on geology.

Field Geology. 4th Edition, by F. H. Lahee, 1941, McGraw-Hill Book Co. Recognition and interpretation of geologic structures and topographic forms as they are observed, and methods of geologic work.

PRECIOUS STONES

A Book of Precious Stones. By J. Wodiska, 1910, G. P. Putnam’s Sons. Written for jewelers, but of general interest.

The Curious Lore of Precious Stones. By G. F. Kunz, 1913, Lippincott. Legends and stories of the gem minerals.

The Magic of Jewels and Charms. By G. F. Kunz, 1915, Lippincott.

Popular Gemology. By R. M. Pearl, 1948, John Wiley and Sons. Scientific and industrial uses of gems, current information about their locality and production.

FOSSILS

An Introduction to the Study of Fossils. By H. W. Shimer, 1933, Macmillan Co. An introductory textbook about fossil plants and animals.

Invertebrate Paleontology. By W. H. Twenhofel and R. P. Shrock, 1935, McGraw-Hill Book Co.

Textbook of Geology Part II—Historical Geology. 4th Edition, by C. Schuchert and C. O. Dunbar, 1941, John Wiley and Sons. The story of the development of life through the ages.

INDEX

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A
Actinolite, 120
Adobe, 210
Agate, 107
Agate, moss, 73, 108
Alabaster, 152
Albertite, 229
Albite, 110, 113, 115
Almandine, 97
Almandite, 122, 123
Aluminum bronze, 74
Aluminum group, 73
Amazon stone, 114
Amber, 223
Amethyst, 104
Amethyst, Oriental, 75
Amianthus, 120
Amphibole group, 119
Amygdoloid, 194
Amygdoloidal, 176
Analcite, 141
Andesite, 113, 187
Andradite, 122, 124
Anglesite, 62
Anhydrite, 149
Anorthite, 110, 113
Anorthosite, 183
Anthracite, 218, 222
Antimony, 81
Antimony, gray, 81
Apatite, 160
Aquamarine, 125
Aragonite, 147
Argentite, 35
Argillite, 242
Arkose, 206
Arsenic group, 78
Arsenopyrite, 79
Asbestos, 120, 140
Augite, 118
Aventurine, 104
Azurite, 46
B
Barite, 154
Barium group, 154
Basalt, 188
Batholith, 174
Bauxite, 77
Beryl, 125
Beryl, golden, 125
Beryllium, 125
Bibliography, 270
Biotite, 129, 130
Bitumen, 228
Black jack, 65
Bloodstone, 106
Bog lime, 213
Bombs, 191
Boracite, 164
Borax, 165
Bornite, 41
Brass, 64
Breccia, 191, 198
Brittania metal, 81
Bronze, 38
Bronze Age, 38
Bronzite, 118
Bytownite, 113
C
Calamine, 68
Calaverite, 30
Calcite, 144
Calcium, 143
Carbon, 156
Carbonite, 222
Carbuncle, 124
Carnelian, 106
Carnotite, 90
Cassiterite, 93
Cat’s eye, 104
Celestite, 153
Cerargyrite, 37
Cerrusite, 61
Ceylonite, 97
Chalcedony, 104, 106
Chalcocite, 42
Chalcopyrite, 40
Chalcotrichite, 45
Chalk, 213
Chert, 107
Chlorite, 140
Chlorospinel, 98
Chromite, 87
Chromium, 86
Chrysocola, 47
Chrysolite, 134, 140
Chrysoprase, 106
Cinnabar, 91
Cinnamon stone, 123
Citrine, 103
Clay, 207
Clay, ball, 208
Clay, brick, 209
Clay, china, 208
Clay, fire, 208
Clay, paving brick, 209
Clay, sewer-pipe, 209
Clay, slip, 209
Clay, stoneware, 209
Clay stones, 250
Cleavage, 21
Cleavage, slaty, 234
Coal, 217
Coal, bituminous, 212, 220
Coal, cannel, 221
Coal, hard, 222
Coal, soft, 220
Cobalt, 84
Cobalt bloom, 85
Cobalt glance, 85
Cobalt gray ore, 85
Cobaltite, 83
Coke, 220
Colemanite, 165
Collecting, 5, 7
Color, 23
Concretions, 248
Concretions, flint, 253
Concretions, lime, 251
Concretions, other, 255
Concretions, sandstone, 253
Conglomerate, 202
Copper, 37, 39
Copper, blushing, 42
Copper, glance, 42
Copper, grey, 43
Copper, peacock, 42
Copper, plush, 45
Copper, purple, 41
Copper, red, 44
Copper, variegated, 42
Copper, yellow, 40
Coquina, 213
Coral, 146
Coral rock, 214
Corundum, 75
Crude oil, 227
Cryolite, 78
Crystal balls, 101
Crystal formation, 14
Crystal rock, 103
Crystal structure, 11
Crystal systems, 13-18
Cuprite, 44
Cyanite, 128
D
Dacite, 187
Dense, 176
Diamond, 157
Diamonds, Matura, 127
Diamonds, slave’s, 133
Diatoms, 231
Dikes, 174
Diorite, 182
Dog-tooth spar, 145
Dolomite, 99
Dry bone, 68
E
Earth, diatomaceous, 23
Elements, listed, 267
Emerald, 125
Emerald, Oriental, 75
Emery, 76
Enstatite, 117
Epidote, 134
Equipment, 7
Erubescite, 42
Extrusive, 173
F
Feldspar, 110
Feldspar, alkalic, 111
Felsite, 186
Felsitic, 176
Ferromanganese, 70
Flagstone, 207
Flint, 106
Fluorine, 162
Fluorite, 162
Fossils, 266
Fragmental, 176
Franklinite, 69
Freestone, 207
G
Gabbro, 183
Galena, 60
Garnet group, 121
Garnet, Sirian, 123
Geodes, 255
German silver, 82
Gilsonite, 229
Glassy, 176
Glucinum, 125
Gneiss, 237
Goethite, 51, 52
Gold, 31
Gold foil, 64
Gold group, 29
Gossan, 50
Granite, 178
Granite, graphic, 179
Granitoid, 176
Graphite, 156, 219
Gravel, 201
Graywacke, 206
Grit, 206
Grossularite, 122, 123
Guano, 230
Gumbo, 210
Gypsum, 150
H
Halite, 163
Hardness, 20
Hardpan, 216
Heavy spar, 154
Heliotrope, 106
Hematite, 53
Hemihedral forms, 19
Hercynite, 98
Hexagonal system, 18
Hornblende, 121
Hornstone, 107
Hyacinth, 127
Hypersthene, 118
I
Ice, 167
Iceland spar, 145
Ice stone, 78
Ilmenite, 94
Intrusive, 174
Iron, 47
Iron, bog, 50
Iron, chromic, 87
Iron, magnetic, 54
Iron pyrites, 56
Iron, spathic, 55
Iron, specular, 53
Isometric system, 13
J
Jacinth, 127
Jargons, 127
Jargoons, 127
Jasper, 106
Jet, 222
K
Kaolin, 137, 208
Kaolinite, 137
L
Labels, 5
Labradorite, 113, 116
Laccolith, 174
Lapilli, 191
Lava, 173
Lead, 59
Lead glance, 60
Lead, green ore, 63
Lead, white ore, 61
Lepidolite, 129, 130
Lignite, 218, 219
Limestone, 212
Limestone, encrinal, 214
Limestone, hydraulic, 214
Limestone, lithographic, 214
Limonite, 49, 51
Loess, 210
Luster, 23
M
Magma, 173
Magnesite, 98
Magnesium group, 96
Magnetite, 54
Malachite, 45
Malanite, 124
Malta, 229
Manganese group, 70
Manganite, 72
Marble, 243
Marble, Suisun, 146
Marcasite, 57
Marl, 211
Mercury, 90
Meteorites, 262
Mica group, 128
Microcline, 113, 114
Millerite, 83
Mineral tables, 25
Minerals, defined, 10
Molybdenite, 81
Molybdenum, 80
Monoclinic system, 17
Monzonite, 181
Morion, 103
Mother-of-pearl, 148
Muscovite, 129
N
Natrolite, 142
Natural gas, 227
Needle iron stone, 52
Niccolite, 83
Nickel, copper, 83
Nickel group, 82
O
Obsidian, 191
Ochre red, 54
Ochre yellow, 49
Oligoclase, 113, 115
Olivine, 134
Olivine-gabbro, 183
Onyx, 108
Onyx, Californian, 146
Onyx marble, 215
Onyx, Mexican, 146
Oolites, 254
Opal, 108
Opal-agate, 109
Opal, common, 109
Opal, fire, 109
Opal, precious, 109
Ophicalcite, 246
Ophiolite, 246
Orpiment, 80
Orthoclase, 110, 113
Orthorhombic system, 16
P
Paste, 103
Pearls, 148
Pearlstone, 193
Peat, 218, 219
Pebbles, 256
Pegmatite, 179
Peridot, 134
Peridotite, 184
Perlite, 193
Petroleum series, 224, 227
Pewter, 60
Phenocrysts, 189
Phlogopite, 129, 131
Phosphate, 160, 230
Phosphorus, 159
Phyllite, 242
Picotite, 97
Pisolite, 255
Pitchstone, 193
Plagioclase, 111
Plasma, 106
Platinum, 95
Plumbago, 156
Porous, 176
Porphyritic, 176
Porphyry, 189
Prase, 104
Prousite, 36
Psilomelane, 72
Pumice, 193
Pyrargyrite, 35
Pyrite, 56
Pyrite, capillary, 83
Pyrite, magnetic, 58
Pyrite, white, 57
Pyritohedron, 56, 318
Pyrolusite, 71
Pyromorphite, 63
Pyrope, 122, 123
Pyroxene group, 116
Pyroxenite, 185
Pyrrhotite, 58
Q
Quartz, 100
Quartz-diorite, 181
Quartz, milky, 103
Quartz, rose, 104
Quartz, smoky, 103
Quartzite, 239
Quicksands, 204
Quicksilver, 90
R
Radium, 89
Realgar, 80
Rhinestones, 101
Rhodochrosite, 73
Rhyolite 185
Rock, phosphate, 230
Rocks, 170
Rocks, defined, 10
Rocks, igneous, 172
Rocks, igneous, classified, 177
Rocks, metamorphic, 232
Rocks, metamorphic, classified, 236
Rocks, sedimentary, 194
Rocks, sedimentary, classified, 196
Rubicelle, 97
Ruby, 75
Ruby, Balas, 97
Ruby mica, 52
Rutile, 94
S
Salt, 163
Sand, 202
Sandstone, 205
Sapphire, 75
Sapphire, Oriental white, 75
Sardonyx, 108
Satin spar, 146
Schist, 240
Schistosity, 234
Scoria, 192, 193
Septeria, 252
Sericite, 130
Serpentine, 139, 245
Shale, 210
Shale, oil-bearing, 225
Sheet, 173
Siderite, 55
Silica, 99
Silicates, 99
Silicon, 99
Sill, 174
Sillimanite, 128
Silver, 34
Silver, dark red, 35
Silver, German, 65
Silver glance, 35
Silver group, 32
Silver, horn, 37
Silver, light red, 36
Silver, ruby, 35
Sinter, 110
Slate, 241
Smalt, 84
Smaltite, 85
Smithsonite, 68
Soapstone, 244
Sodalite, 126
Soil, 198
Solder, 60
Specific gravity, 22
Speigeleisen, 70
Spelter, 64
Spessartite, 122, 123
Sphalerite, 65
Spinel, 97
Spinel-ruby, 97
Stalactites, 146
Stalagmites, 146
Staurolite, 133
Steatite, 244
Stellite, 84, 88
Stibnite, 81
Stilbite, 143
Stock, 174
Streak, 23
Strontianite, 152
Strontium group, 152
Sulphur, 166
Syenite, 180
Sylvanite, 30
T
Talc, 138
Talus, 197
Tetragonal system, 15
Tetrahedrite, 43
Tile ore, 45
Till, 215
Tillite, 217
Time chart, 268
Tin, 92
Tin stone, 93
Titanium, 93
Tonalite, 181
Topaz, 131
Topaz, false, 103
Topaz, Oriental, 75
Topaz, Saxon, 132
Topaz, Scotch, 132
Topaz, smoky, 132
Topaz, Spanish, 132
Tourmaline, 135
Trachite, 186
Trap, 188
Travertine, 146, 215
Tremolite, 120
Triclinic system, 18
Tripolite, 110
Tufa, calcareous, 147
Tuff, 190
Tungsten, 87
Turgite, 51
Turquois, 161
Twinning, 19
Type metal, 60
U
Uintaite, 229
Uranium, 89
Uvarovite, 122, 123
V
Vanadium, 89
Verde antique, 247
Volcanic ash, 190
Volcanic blocks, 191
W
Water, 167
White metal, 64
Willemite, 67
Witherite, 153
Wolframite, 88
Wood, agatized, 108
Wood, opalized, 109
Wood, silicified, 108
X
Xanthosiderite, 51
Z
Zeolites, 141
Zinc, 63
Zinc blende, 65
Zinc red ore, 66
Zinc, ruby, 65
Zincite, 66
Zircon, 127