OCT 31 19P2 



No. 7. — River Terraces in New England. By W. M. Davis. 



TABLE OF CONTENTS. 



I. General Statement .... 

 Theories of River Terraces 



II. Preliminary Inquiry . . . 



Various Kinds of Terraces 

 Terrace Patterns .... 

 Terraces carved by Streams 



of Diminishing Volume . 

 Terraces carved by Streams 



of Increasing Slope . . 

 Terraces carved by Streams 



of Diminishing Load . . 

 Preservation of Terraces 



by Rock Ledges . . . 

 Origin of Terraces in New 



England 



III. The Theory of River Ter- 



races 



Plan of Statement . . . 

 Behavior of a Wandering 



River 



Terminology of Wandering 



Rivers 



Ideal Terrace Patterns 



Early Stage .... 



Ideal Terrace Patterns 



' Middle Stage . . . 



Ideal Terrace Patterns 



Late Stage .... 

 Defended Terrace Cusps 



Early Stage 



Slipping Meanders and 



Blunt Cusps 



Compressed Meanders and 



Sharp Cusps . . . . 

 Terrace Fronts near De- 

 fended Cusps . . . . 

 VOL. xxxviii. — no. 7 



PAGE 



282 

 282 

 284 

 2?4 



285 



IV. 



288 



290 



293 



294 



296 



297 

 297 



298 



302 



303 



3)6 



309 



311 



313 



314 



315| V. 

 1 



Defended Cusps : Later 



Stage 316 



Diminished Swinging of the 



Meander Belt .... 318 

 Distribution of High-scarp 



and Low-scarp Terraces 319 

 Effect of Rock Barriers . . 320 

 Relation of Terrace Pat- 

 terns on the two Sides of 



a Valley 322 



Ratio of Sweeping, Swing- 

 ing, and Degrading . . 322 

 Relation of the Preceding 

 Deductions to the Obser- 

 vations described in the 

 Following Sections . . 324 

 Observations of River Ter- 

 races in New England . 327 

 Valley of the Westfield 



River, Mass 327 



Eastern Section . . . 327 

 Western Section . . 331 

 Little River .... 333 

 Valley of Saxton's River, Vt. 334 

 Western Section • . . 334 

 Eastern Section . . . 337 

 The Connecticut below 



Bellows Falls, Vt. . . 338 

 The Connecticut below 



Turners Falls, Mass. . 342 

 The Connecticut near 



Springfield, Mass. . . 343 

 The Merrimac between 

 Concord and Manches- 

 ter, N. H 344 



Bibliography 346 



