ILLUSTRATIONS 



Xlll 



Leverett : 



Figure 



Miller : 



Figure 



Diller : 



Figure 



Page 



1 — Map of the Des Moines icelobe 103 



1 — Sillimanite-schist inclusions in granite near south Rus- 

 sell, New York 131 



1 — Basaltic lava from San Salvador, Central America 143 



2 — New lava from Lassen Peak, California 144 



Putnam : 



Figure 1 — Diagram illustrating three methods, used in 1895, of re- 

 duction of gravity observations to sealevel, for two 

 stations, located one above and the other below the 



average elevation 292 



Wood : 



Figure 1 — Diagram to illustrate growth of stresses with depth . . . 308 

 Law sow : 



Figure 1 — Diagrammatic representation of a thrust block 337 



" 2-^Diagram to show the increase in the coefficient of fric- 

 tion with increasing pressure (after Rennie) 339 



" 3 — Diagrammatic representation of a thrust block 342 



" 4 — Diagrammatic representation of a thrust block 343 



" 5 — Diagrammatic representation of a thrust block, showing 



failure due to underthrusting 345 



" 6 — Diagram illustrating thrusting by rotation 347 



7 — -Diagram illustrating thrusting by a current moving 



from right to left below the crust 348 



8 — Diagram illustrating the initiation of a curved thurst, 



D, in depth and its propagation toward the surface . . 348 

 9 — Diagram illustrating the development of the curved 



thrust, PQ, as a result of isostatic compensation 349 



Lane : 



Figure 1 — Diagram showing by ordinates the weight in tons per 

 cubic meter and per cent of moisture absorbable of 



sediments of porosity indicated by abscissas 359 



Washington : 



Figure 1 — Continental and oceanic densities and altitudes 394 



2 — Densities and altitudes of land areas 396 



GSBORN AND REEDS I 



Figure 1 — Map of central and southern European glaciations 41G 



2 — Graphic presentation of the relation of the Pleistocene 

 glacial phenomena of the Alps to the river and marine 



terraces of Europe 428 



3 — Map of north European glaciation 442 



4 — Cross-section of the terraces on the river Somme at 



" Saint Acheul, northern France 448 



5 — Quarry section of Chelles-sur-Marne 450 



6 — Cross-section of the valley of the river Elsenz at Mauer, 



Germany, near Heidelberg 453 



