470 N. H. DARTON CATALOG OF PHOTOGRAPHS 



642. Lake Michigan near Glen Arbor, Michigan. 



725. Palisades of the Hudson, New Jersey. 



737. Griffin bay, lake Ontario, New York. 



746. Limestone blocks, rounded by wave action, near Watertown, New York. 



783. Lake Ontario at Wilson, New York. 



878. Palisades of lake Champlain, New York. 



Sink-holes 



1278. Minnekahta limestone east of Cambria, Wyoming. 

 840. Helderberg limestone near Coxsackie, New York. 



Spheroidal Structure 



392. North Table mountain near Golden, Colorado. 

 940. Volcanic rock, 1 mile east of Cascade locks, Oregon. 



Springs 



(See also Geysers and Spring Deposits) 



1096. Thermal springs at Cascade, South Dakota. 

 1309. Spring in Gallatin canyon, Wyoming. 



Spring Deposits 



217. Towers of tufa, shore of Mono lake, California. 



364, 365. Calcareous tufa bank. Cement creek, Gunnison county, Colorado. 

 374. Iron spring near Ophir, Colorado. 



689. Spring and its saline deposits from Pierre shale, Chadron, Nebraska. 

 708. Tufa domes, Lake Lahontan basin, Nevada. 

 1121. "Spearnsh falls," Black hills, South Dakota. 



1283, 1335. Minerva terrace, Mammoth hot springs, Yellowstone park, Wyoming. 



1284, 1330. Paint pots near Fountain hotel, Yellowstone park, Wyoming. 

 1285-1287. Fountain geyser, Yellowstone park, Wyoming. 

 1288-1295. Angel terrace, Yellowstone park, Wyoming. 



1317. Runway of Indigo spring, Yellowstone park. 



1318. Algse basins, Emerald spring, Upper Geyser basin, Yellowstone park. 



1319. Spike geyser, Witch creek, Yellowstone park. 



1320. Siliceous sinter from Coral spring, Yellowstone park. 



1331. Beehive geyser, Yellowstone park. 



1332. Lone Star geyser, Yellowstone park. 



1333. Excelsior geyser, Yellowstone park. 



1334. Fountain basin, Yellowstone park. 



1336. Castle geyser, Yellowstone park. 



1337. Upper Geyser basin, Yellowstone park. 



1338. Upper Geyser basin ; formation of siliceous sinter, Yellowstone park. 



1339. Crater of the Castle geyser basin, Yellowstone park, Siliceous sinter. 



1340. Crater of the Grotto geyser, Yellowstone park. 



1341. Old Faithful in eruption, Yellowstone park. 



