392 N. H. DAKTON — CATALOG OF PHOTOGRAPHS 



Photographed by. H. W. Turner 

 5 by 8 inches. Negatives in United States Geological Survey 



280. Laminated and roughly columnar fine grained pyroxene-andesite. Franklin 



Hill (Bidwell Bar atlas sheet), California. See Journal of Geology, vol- 

 ume iii, page 410 (No. 12). 



281. Potholes in the granite of the canyon of the north fork of the Mokelumne 



river, California. See American Journal of Science, volume xliv, page 

 453 (No. 31). 



282. Farewell gap, at the head of the drainage of a branch of the middle fork of 



the Kaweah river, Tulare county, California. In the southern Sierra 

 Nevada. Elevation of the gap, about 10,500 feet (No. 20). 



283. The shattered granite crest of the Sierra Nevada, about 6 miles southeast of 



Tower peak, in Tuolumne county-, California (No. 47). 



284. Glaciated canyon north of lake Eleanor, Tuolumne county, California, show- 



ing the roches moutonnee. All the rock is granite (no negative). 



285. Granite bank west of Granite lake, Tuolumne county, California, showing 



basic nodales in the granite and dikes of aplitic granite (granulite of Levy) 

 cutting both the main granite mass and the included nodules. See 14th 

 Annual Report U. S. Geological Survey, page 480 (No. 46). 

 2S6. Basic (black hornblende and some feldspar) inclusions in porphyrite (altered 

 andesite) dike by the middle fork of the Feather river. Sierraville atlas 

 sheet (no negative). 



287. Basaltic dikes in andesitic breccia on ridge south of Poker flat, Sierra county, 



California. Downieville atlas sheet (no negative). 



288. Old andesite (porphyritic) tuffs west of the Salmon lakes, Sierra county, Cali- 



fornia; showing joint structure. The tuffs are of Jura-Trias age (No. 3). 



289. Exfoliating granite ; view on the crest of the Sierra Nevada about 3 miles 



south of Raymond peak, Markleeville atlas sheet. See 14th Annual Re- 

 port U. S. Geological Survey, page 481 (No. 23). 



290. Wind ripples in the sand near west entrance to Golden Gate park, San Fran. 



cisco (no negative). 



291. Wind ripples in the sand near north entrance to Golden Gate park, San 



Francisco (no negative). 



292. Cascades hydraulic gold gravel mine, showing the deposits of a Tertiary 



river, east slope of the Grizzly mountains, Plumas county, California, 

 Downieville atlas sheet (No. 10). 



293. Fault scarp and depressed block to the east of it. at the head of Dogwood 



creek, Plumas county, California, Bidwell Bar atlas sheet (No. 13). 



294. Neocene shore gravels resting unconformably in a water-worn surface of the 



lone sandstones, 3 miles southeasterly from Buena Vista, Amador county, 

 California, Jackson atlas sheet (No. 16). 



295. Wind ripples in sand by north entrance to Golden Gate park, San Francisco 



(no negative). 



296. lone formation capped by Pleistocene gravels; south bank of Mokelumne 



river, just east of the Comanche bridge, Calaveras county, California, 

 Jackson atlas sheet (No. 17). 



