INDEX 
435 
New York system, 233 
Newberry, J. S., cited, 26, 384, 331 
Newsom, J. F., mention, 264 
Newton, H., cited, 27 
Newton, I., quoted, 82 
Nicollet, J. N., cited, 255 
Nishnalxitna sandstone in Missouri, 
256 
Nonnezoshie natural bridge, 213 
North Carolina, iron ores, 345; 
Triassic coal, 246 
Northernmost Extension of Marine 
Eocene Beds in Mississippi Em- 
bayment, by E. W. Berry, 75 
Norton, W. H., quoted, 253 
Norwood, J. G., cited, 307 
Occurrence of Oldest Known Tril- 
obites, by C. D. Walcott, 329 
Ocoee section of Alabama, 363 
Ohern, D. W., cited, 249 
Oil reserves of world, 350 
Oklahoma, Muscogee shales, 248 
Oldest fossils, 162; trilobites, 329 
Oldest Peccary from America, by 
H. J. Cook, 357 
Optical properties of nephrite, 199 
Ordmann, L., cited, 194 
Ordovicic volcanic ash in Tennes¬ 
see, 251 
Ore-bearing waters, cycles, 347; de¬ 
pletion areas, 379; deposition, 
vadose, 275, 379 
Ore deposits of New Mexico, 387; 
localization, conditions, 382 
Ore-deposition in Trunk Channels, 
by C. Keyes, 226 
Origin of Bolivian Copper Ores, by 
J. T. Singewald, Jr., and E. W. 
Berry, 367 
Origin of Desert Ranges of Mex¬ 
ico, by J. E. Spurr, 79 
Origin of East Mesabi Magnetic 
Ores, by F. F. Grout, 337 
Origin of Oldest Fossils, by C. 
Keyes, 162 
Origin of natural bridges, 218; 
species, quotation, 4, 121 
Orotaxial Relationships of Lance 
Series in Montana, by C. Keyes, 
71 
Ortiz laccolith, 117; section, 117 
Owachomo natural bridge, 223 
Owen, D. D., cited, 307, 245, 255 
Ozark group, defined, 40; proposed, 
39 , 
Ozark uplift, collections, 35; ore 
deposition, 229; ore deposits, 276; 
ore depletion, 379 
Pacific ocean, age, 196 
Pack, F. J., Natural Bridges, Utah, 
213 
Paleontological Geology, notes, 61, 
311 
Paleozoic faunas of Missouri, 35; 
formations of Iowa, 172 
Pan-Americanism of Branner, 232 
Pangenesis, 312 
Passarge, S., cited, 280 
Passing of Murchison’s Siluria, by 
C. Keyes, 233 
Passing of Venerable Mining In¬ 
dustry, by C. Keyes, 161 
Patagonia, Fairweather beds, 23 
Patagonia, stratigraphy, 418 
Patagonia beds of Argentina, 22 
Patriarch of Amherst, 44 
Patten, W., chart of vertebrates, 10; 
quoted, 9; work, 6 
Patton, H. B,, mention, 43 
Peale, A. C., cited, 27 
Pearls in river mussels, 158 
Peat, carbon content, 144; deposits, 
139 
Peccary from America, 357 
Peck, F. B., mention, 43 
Penck, A., cited, 180 
Peneplains of Rocky Mountains, 361 
Penfield, L. S., cited, 200 
Pennine system, 39 
Pennsylvania fishes, 330 
Pennsylvania series, proposed, 39 
Penrose, R. A, F., expedition, 259 
Perchoerus minor. Cook, 357 
Permanency of continents, 179 
Permian ice age, 178 
Peru, Andes, 18; Zorritos forma¬ 
tion, 22 
Peter Sandstone, complexity, 245; 
derivation, 244; taxonomic sig¬ 
nificance, 288 
Petrology, rightful demesne, 253 
Philippi, E., quoted, 179, 197 
Phillips, J. A., cited, 384 
Philosopher’s Stone, 312 
Phoenicians and tin, 161 
Phyletic Relations of Lance Verte¬ 
brates, by W. D. Matthew, 68 
Physiographic Setting of Earliest 
Tertiary, by C. Keyes, 69 
Piatigorsk necks, 32 
Piedmont plateau, 31 
Pipe Vein, verity, 352 
