vi BULL. GEOL. SOC. A.M.. VOL. 4. 



Page 



Gilbert: Figure I — < Jeneralized Profile, showing relative An -as of tin- Earth's 



Surface al differenl Heights and Depths 180 



" " 2— The continental Plateau as related to the Western and 



Eastern Hemispheres 181 



" " :j — The continental Plateau, developed on a plane Surface . . L85 



4 — Oceanic Area complementary to the continental Plateau, 



developed on a plane Surface 185 



5— Area of continental Plateau, developed with reference to 



a great ( !ircle 1 V| '. 



Keves: " 1 — Microscopic Crystal of Epidote in Ellicott City (Mary- 

 land) < rranite 309 



2— Epidote in Ellicott City Granite 309 



" " 3— Epidote in Woodstock (Maryland) Granite 309 



" 4— Epidote in Woodstock Granite 309 



Darton: " 1 — Cross-section of Ridge on south Side of Rondout Creek, 



at Rosendale, Ulster County, New York, looking North. 4:;7 

 " " 2 — Cross-section of Overthrust west of South Bethlehem, 



Albany County, New Y< >rk 438 



" " 3— Overthrust on Sprayt Creek. Section on north Bank, 



looking North 439 



(10 plates, .").") figures.) 



