xxxiv ILLUSTRATIONS IN THE TEXT 



PAGE 



450. Lake Garda, a border lake upon the site of a piedmont apron . .414 



451. Diagrams to bring out the characteristics of ox-bow lakes . . . 415 



452. Diagramatic section to illustrate the formation of saucer-like basins 



between the levees of streams on a flood plain .... 415 



453. Saucer lakes upon the bed of the former river Warren . . .416 



454. Levee lakes developed in series within meanders in a delta plain . 417 



455. Raft lakes along the banks of the Red River in Arkansas and Louisiana 418 



456. Map of the Swiss lakes Thun and Brienz 419 



457. Delta lakes formed at the mouth of the Mississippi . . . .419 



458. Delta lakes at the margin of the Nile delta 420 



459. Diagrams to illustrate the characteristics of barrier lakes . . . 420 



460. Dune lakes on the coast of France 421 



461. Sink lakes in Florida, with a schematic diagram to illustrate the 



manner of their formation 421 



462. Map of the Arve and the Upper Rhone . . . . .426 



463. View of the Arve and the Rhone at their junction .... 427 



464. A village in Switzerland built upon a strath at the head of Lake 



Poschiavo 428 



465. View of the floating bog and surrounding zones of vegetation in a 



small glacial lake 429 



466. Diagram to show how small lakes are transformed into peat bogs . 430 



467. Map to show the anomalous position of the delta in Lake St. Clair . 431 



468. A bowlder wall upon the shore of a small lake 432 



469. Diagrams to show the effect of ice shove in producing ice ramparts 



upon the shores of lakes 433 



470. Various forms of ice ramparts . . 433 



471. Map of Lake Mendota, showing the position of the ridge which forms 



from ice expansion and the ice ramparts upon the shores . . 434 



472. The great multiple mountain arc of Sewestan, British India . . 436 



473. Diagrams to illustrate the theories of origin of mountain arcs . . 437 



474. Festoons of mountain arcs about the borders of the Pacific Ocean . 438 



475. The interrupted Armorican Mountains common to western Europe 



and eastern North America ........ 438 



476. A zone of diverse displacement in the western United States . . 439 



477. Section of an East African block mountain 439 



478. Tilted crust blocks in the Queantoweap valley 440 



479. View of the laccolite of the Carriso Mountain 441 



480. Map of laccolitic mountains . * 441 



481. Ideal sections of laccolite and bysmalite 442 



482. The gabled fa?ade largely developed in desert landscapes . . .443 



483. Balloon view of the Mythen in Switzerland 444 



484. The battlement type of erosion mountain 445 



485. Symmetrically formed low islands repeated in ranks upon Temagami 



Lake, Ontario - . 445 



486. Forms of crystals of a number of minerals 454 



487. Forms of crystals of a number of minerals . ...... 467 



