704 



INDEX 



Pyroxene, 253, 255 

 Pyroxenite, 260, 262 



Quartz, 253, 254 

 Quartzite, 292 

 Quaternary, 556 



eruptions, 66 1 



life, 663 



marine deposits, 66 1 



non-glacial formations, 651 

 Quercus suspecta, 547 



Radiolarian ooze, 199 

 Rafmesquina alternata, 382 

 Rain, effects of, 28 

 Raindrop impressions, 272 

 Raised beaches, 662 

 Rancocas formation, 534 

 Ransome, F. L., cited, 408 

 Raphistomina lapicida, 381 

 Rapids, 89 



Raton formation, 539 

 Ravines, 58 

 Recent formations, 677 

 Recent movements, 677 

 Receptaculites occidentalis, 386 



oweni, 400 



Recessional moraine, 631 

 Reconstructed glaciers, 130 

 Red Beds, 445, 470, 489 

 Red cky of deep sea, 199 

 Red mud, 198 

 Red Sea, 608 



Reid, H. F., cited, 131, 133, 134 

 Reindeer, 679 

 Reineckia brancoi, 508 

 Rejuvenation of streams, 101, 103 

 Relief, 18 

 Rensselaeria aequiradiata, 414 



ovoides, 415 

 Replacements, 286 

 Reptiles, Cretaceous, 546 



Eocene, 572 



Jurassic, 513 



Permian, 477 



Triassic, 494 

 Residuary ores, 44 

 Reteograptus eucharis, 385 

 Reticularia pseudolineata, 435 

 Retusa conulus, 597 

 Rhaetic formation, 491 

 Rhamphorhynchus phyllurus, 518 

 Rhinidictya mutabilis, 383 

 Rhinoceros, 579 



Rhipidomella burlingtonensis, 435 



oblata, 414 



vanuxemi, 419 

 Rhynchonella asquiplicata, 500 



gnathophora, 512 



whitneyi, 531 

 Rhynchotrema capax, 382 

 Rhytimya radiata, 381 

 Richmond beds, 368, 388 

 Rill-marks, 192 

 Ripley formation, 535 

 Ripple-marks, 21, 191, 2/71 

 River ice, 122 

 Roan Mountain, 104 

 Roanoke River, 105 

 Roches moutonnees, 161, 162, 622 

 Rochester shale, 388 

 Rock breaking by changes of tempera- 

 ture, 25 

 Rock-salt, 268 



Rock structure and erosion, 81 

 Rock terraces, 91 

 Rock waste, 265, 285 

 Rocks, varieties of, 8, 246, 258, 267, 292, 



297 



Rocky Mountains, development of, 541 

 Rodents, Eocene, 571 



Miocene, 594 

 Rondout waterlime, 388 

 Roots, and rock breaking, 74 

 Ropy lava, 239 

 Rose quartz, 254 

 Rothliegende, 472 

 Running water, work of, 56-120 

 Russell, I. C., cited, 40, 107, 131, 149. 



202, 203, 245, 628, 658 



St. Anthony Falls, 90 



age of, 647 



St. Croixan epoch, 344, 346 

 St. Louis faunas, 436 



series, 426, 427 

 St. Peter sandstone, 369 

 Safford, J. M., cited, 600 

 Salem formation, 427 

 Salenia tumidula, 554 

 Salina beds, 388, 392 

 Salisbury. R. D., cited, 131, 203, 226; 



366, 376, 600, 628, 630, 645 

 Salt, Silurian, 391 

 Salt in New York, 392 



in Ohio, 392 

 Salt deposits, 195 

 Salt lakes, 203 

 Salton Sink, 118 



