CALIFORNIA o'do 



297. Porphyritic granite near Granite lakes, Toulumne county, California. The 



larger potash feldspars are 2 inches long (no negative). 



298. Glaciated granite about 6 miles north of Hetch-hetchy valley, looking north, 



Tuolumne county, California (Mo. 37). 



299. Granite lake, Tuolumne county, California; showing the glaciated surfaces 



(No. 45). 



300. Glaciated knob of columnar hornblende andesite, 3 miles west of Silver peak, 



Alpine county, California, Markleeville atlas sheet (No. 27). 



301. Vertical fissures in granite, north of Charity valley, Alpine county, Califor- 



nia, Markleeville atlas sheet (No. 26). 



302. Moraines north of Pleasant valley, Alpine county, California. The valley 



lies immediately south 600 feet lower than the moraines seen in the middle 

 of the picture, Markleeville atlas sheet (no negative). 



303. West peak of mount Raymond, Alpine county, California, from Indian valley. 



The peak is composed of hornblende pyroxene andesite breccia, Marklee- 

 ville atlas sheet (No. 25). 



304. The summit of the Sierra Nevada, near Tower peak, Tuolumne county, Cali- 



fornia (No. 33). 



305. The crest of the Sierra Nevada, Tower peak (No. 34). 



306. Summit of the Sierra Nevada near Tower peak, Tuolumne county, California. 



View taken in July (No. 32). 



307. From Charity valley, Alpine county, California ; showing the fissures and 



glaciated granite, with lavas on the ridge tops ; Hawkins peak (hornblende- 

 andesite) in the distance, Markleeville atlas sheet (no negative). 



Canada 



Photograplied by Dr George 31. Dawson 



6J by 8J inches. Negatives in Geological Survey of Canada 



308. Fraser river at Fountain, British Columbia (No. 57, September 16, 1889). 



309. Part of the interior plateau of British Columbia, looking southeastward from 



Porcupine ridge (No. 79, August 27, 1890). 



310. Glaciated surface of basalt (No. 77, August 26, 1890). 



311. Gorge of Elk river, B. C. (No. 31, 1883). 



312. Glacier and snow-field at head of Red Deer river, Alberta (No. 50, September 



23, 1884). 



313. Folded cretaceous rocks, headwaters of Cascade river, Alberta (No. 41. Sep- 



tember 20, 1884). 



314. Bluffs on Pelly river, Lethbridge, Alberta (No. 17, June 27, 1883). 



Photographed by J. B. Tyrrell 

 65 by 8J inches. Negatives in Geological Survey of Canada 



315. View northward along one of the upper Agassiz beaches, Manitoba (No. 10 



1887). 



316. Swampy island, lake Winnipeg, Manitoba (No. 6, 1889). 



317. Swampy island, lake Winnipeg, Manitoba (No. 9, 1889). 



