454 N. H. DARTON — CATALOG OF PHOTOGRAPHS 



Dikes, Igneous 



285. Granite at Granite lake, Tuolumne county, California. 



287. Basalt dikes, Polka flat, Sierra county, California. 



591. Trap dikes at Bald cliff, Maine. 



819-820. Fault and dyke, East Canada creek, New York. 



893. Trap dike, Avalanche lake, New York. 



913. Decomposed trap, Wadesborough, -North Carolina. 



959. Trap at Cornwall, Pennsylvania. 

 1120. Bear butte, Black hills, South Dakota. 

 1152. Trap in Cambrian quartzite, Burlington, Vermont. 



Dikes, Sandstone 



209. 215, 216. Penetrating Cretaceous shales, Dry creek, Tehama county, California. 



210. On Roaring river above Drews, California. 



211. On Crow creek, Shasta county, California. 



212. Cutting Cretaceous shales on Roaring river, Shasta county, California. 



213. 214. Group on north fork of Cottonwood creek, near Gaspoint, Shasta county, 



California. 

 279. Limestone with intruded quartzite, Waucobi canyon, Inyo county, California. 

 1101. In Benton shales, southeast of Maitland, South Dakota. 



Dismal Swamp 

 1172-1187. Dismal swamp, Virginia. 



Earthquake Phenomena 



1045-1065. At Charleston, South Carolina. 



Experiments in folding loaded Strata in horizontal Thrust 



1360-1378. Experiments of Bailey Willis in 1890. Photographs representing excess- 

 ive stages in the development of folds and faults. 



Faults 



92. Graywacke, shale and sandstone, Gens de Large river, Alaska. 

 156. East side of Rio Verde, Arizona. 

 272,273. Thrust beds of Cambrian limestone and quartzitic sandstone, Waucobi 



canyon, Inyo range, California. 

 274. Thrust plane in south wall of Devils gate, Inyo range, California. 

 293. Fault scarp, Plumas county, California. 

 348. Fault between Archean gneiss and Trenton limestone and Utica shales, south 



of Montmorency falls, Canada. 

 423. A cliff due to a fault, Las Animas county, Colorado. 

 514-516, 518. Faulted sandstone and shale, near Houston, Indian Territory. 

 594. Earlier Columbia gravels and loams on crystalline rocks, east of Rock Creek 



bridge, Washington, District of Columbia. 

 690. Gering formation in railroad cut south of Crawford, Nebraska. 



