466 PROCEEDINGS OF THE ALBANY MEETING 



(670). Haystack butte from the east, witli hay ranch in the foreground. A 



typical volcanic neck. 

 (673). Mount McDonald from the east, Mission range, Montana. 

 (674). Glaciers on Mission range, southeast of mount McDonald, Montana. 

 (629). Eroded, cross-bedded Cretaceous sandstone, north of the north fork of 



Sun river, 1 mile east of Rocky Mountain front, Teton county, 



Montana. 

 (629). Eroded, cross-bedded Cretaceous sandstone, north of north fork of 



Sun river, 1 mile east of Rocky Mountain front, Teton county, 



Montana. 



Eight 8 X' 10 photographs, by C. AVhitnum Cross 



(453). Granite cut by veins of quartz, feldspar, and biotite. In the canyon 



of Animas river, opposite Tenmile creek, Colorado, on railroad track. 

 (465). View of Silverton from toll road, at east base of Sultan mountain. 



Shows Animas flood plain, mouth of Mineral and Cement creeks, 



etcetera, Colorado. 

 (473). From bench (with cabin) at 11,000 feet, on north side of Mclntyre 



gulch, looking across Red Creek valley, southeast. Shows landslide 



topography of ridge, north of Corkscrew gulch, Colorado. 

 (475). From knoll near cabin, at mouth of Galena Lion gorge, looking east 



across Red creek. To show details of landslide topography on slope 



between Corkscrew^ gulch and Red mountain, Colorado. 

 (481). View from knoll at mouth of Gray Coi)per gulch, looking north down 



length of Ironton park, Colorado. Saratoga mine buildings on the 



right. 

 (48.>). From l)ench at 11,500 feet, north of Full Moon gulch, Colorado, looking 



down valley of Red creek. Cliffs on San Juan tuff on the left. 

 (485). Rock glacier of Silver basin. From talus slope on east side of basin. 



Shows relation of glacier to basin. Caribou mine, Colorado. 

 (488). Putoise peak from Silver basin, looking north across Canyon creek, 



Colorado. 



Eleven 8 x 10 photographs, by N. H. Darton. 



(754). Sandstone dike, southeast of Maitland, in Benton shales. Black hills, 



South Dakota. 

 (746). Beecher rocks. Erosion in pegmatite, south of Custer, South Dakota. 

 (780). Oligocene cross-bedded gravel in railroad cut, south of Fairburn, South 



Dakota. 

 (740). Devils tower from south. 

 (736). Devils tower from a mile south ; shows base. 

 (738). Devils tower; near vie\v. 

 (739). Devils tower, west side ; near view. 

 (745). Columnar structure of phonolite. Inyankara mountain. Crook county, 



Wyoming. 

 (748). Overturned tree, with roots lifting rock fragments. West side of Black 



hills, Weston county, Wyoming. 

 (742). Sundance mountain; showing talus cones of trachyte near Sundance, 



Wyoming. 



