CONTENTS. xi 



PAGE 



existing physiography, 519. The channels on the continental 

 borders, 521. Upward warping near the coasts, 523. The 

 apparent imperfection of the geologic series on the continental 

 borders, 523. 

 The Behavior of the Continental Borders 526 



The effects of body deformation, 526. The movement of 

 the outer shell, 526. The reverse movement of the shell, 527. 

 The movement of sediments on the continental edges, 527. 

 Cooperative water-displacement, 528. Tidal cooperation, 528. 

 Cooperative agency of the ice-sheets, 529. 

 The Life of the Human Period 530 



The re-peopling of the glaciated areas, 530. The rate of 

 re-distribution, 533. 

 The Dynasty of Man 534 



Human dispersal, 534. Provincialism giving place to cos- 

 mopolitanism, 540. Man as a geological agency, 541. Prog- 

 nostic geology, 542. 



APPENDIX. 



Selected Sections of Strata 545 



Section in West Central Massachusetts, 546. Section in 

 Eastern West Virginia and Western Virginia, 548. Section 

 in Eastern Tennessee, 549. Section in Northeast Alabama 

 and Northwest Georgia, 551. Section in Central Tenness e, 

 552. Section for Southern Michigan, 553. Generalized Sec- 

 tion for Ohio, 554. Generalized section for Indiana, 556. 

 Generalized section for Iowa, 558. Section for Arkansas, 560. 

 Section in Indian Territory, 562. Generalized section for 

 Nebraska, 564. Section in Eastern Wyoming, 565. General- 

 ized section for the Black Hills, 56^. Section in Central Mon- 

 tana, 568. Section in West Central Colorado, 570. General- 

 ized section for Southwestern Colorado, 572. Generalized 

 section for the Grand Canyon Region, 574. Section in Arizona, 

 575. Section in the Eureka District, Nevada, 576. Section 

 in Southern California, 577. Section in Central Washington, 

 578. 



