ILLUSTRATIONS 



Vll 



Figures 

 Branner: 



Figure 1 — Bird's-eye view of the region about Traicao and the mouth 



of Rio Mamanguape 



" 2 — Coastal lakes of the state of Alagoas, Brazil 



Fairchilo: 

 Figure 



1 — Truncation of tributary valleys 



2 — Contour on the Lockport limestone at the Niagara escarp- 

 ment 



3 — Typical profiles of the Niagara escarpment 



4— Diagram showing vertical relation of Cayuga and Seneca 

 valleys to Ontario valley 



5 — Generalized cross-section profiles of Fingsr Lakes valleys, 

 looking north 



6 — Map of Cayuga lake shores at Union Springs 



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1 — Veins on opposite sides of serpentine block 

 2 — Asbestiform veins in massive serpentine 



Merrill: 



Figure 



Hobbs : 



Figure 1 — Sketch map of Spuyten Duyvil creek 



" 2 — Section across Harlem river 



" 3— Section across Harlem river. ... 



" 4 — Section across Harlem river 



" 5 — Section across Harlem river 



" 6 — Profile of rock beneath Harlem river 



" 7 — Section across Harlem river 



" 8 — Section across Harlem river 



" 9 — Section across Harlem river at Park (Fourth) avenue ..... 



" 10— Section across Harlem river 



11 11 — Saction across Harlem river 



" 12 — Section across Harlem river 



" 13 — Section across East river 



" 14 — Section across East river 



" 15 — Section across East river 



" 16 — Section across East river 



" 17 — Section across East river 



" 18— Section across East river. 



11 19 — Location of drill holes under New York tower of East River 



bridge, number 3 



" 20— Section across East river 



11 21— ^Rock surface beneath the "Jersey flats" 



" 22 — Section across Hudson river 



" 23 — Section across Hudson river 



" 24 — Section across Hudson river opposite Fifty-ninth street. . . 



Arnold and Strong : 



Figure 1 — Sketch map of southern California 



" 2 — Sketch map of the San Gabriel mountains 



Fen neman: 

 Figure 



1 — Recession more rapid than shifting. . . 



2 — Recession retarded 



3 — Recession less rapid than shifting . . . 

 4 — Generalized diagram of shore erosion. 



Tarr 



Figure 1- 



-Diagram illustrating causes of unequal development of mo- 

 raine in lateral ice lobes 



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