REPORT OF COMMITTEE ON PHOTOGRAPHS. 473 



342. Shoal Creek shell bunk: Exogyra arietina, Roem. 



343. Cataracts; Honey creek, Llano co. 



:!44. Walsh's quarry near Austin: Limestone and flint. 

 345. Flint nodules in chalk ; southern bank of Colorado river. 

 :i4ii. Lower Cambrian conglomerate ; Burnet co. 



:!47. Colorado valley with " Niggerhead " in distance: from Hoover valley, Bur- 

 net co. 



348. "Niggerhead" mountain, Burnet co. 



349. Deep Eddy; bank of Colorado river between Bee spring and Fisherman's hut, 



near Austin. 

 :;.">(). Potsdam and Silurian contact: Morgan creek, Burnet co. 



Photographed and Presented (in an allium) by Robert Hay, I'. 0. Box 562, Junction 



City, Kansas. 



Size, Kodak circular, 3| inches diameter. 



351. Bear Butte: South Dakota. Prom the south. 



352. " " " " Needle rocks, on eastern end. 



;;.">:;. " " " " From southwest, showing rhyolite and Dakota 



sandstone. 

 354-360. Sandstone dikes in White river Bad-lands; near Chadron, northwestern 



Nebraska. 354, 355, :;:>s and 360 show dike no. 1 ; 356, 357 and 359 show dike 



no. 2. 



361. .Moraine bowlders showing through the snow ; south of Edgarton, S. D. 



362. Drift bowlders in James river bluff; near Jamestown, X. I). 



363. ( rlacial bowlder gravel or glacial clay ; Jamestown, X. D. 

 .'!(i4. Alkaline lake and mud Hat; Coteau du Missouri, X. D. 

 365. hake in the Coteau ; X. D. 



:'.(i(i. Alkaline lake with bowlder beach in the Coteau du Missouri : Northern 

 Pacific ry., X. I). 



367. hake in the Coteau; near Crystal springs, N. D. 



368. hakes iu the Coteau du Missouri ; X. D. 



369. The Coteau du Missouri; southeast of Crystal springs, N. P. ry., N. D. 

 370. south 



371. " •' '• " southwesl 



.i-., .. .. tl u i. a 



• »— 1 .. 11 It £1 (1 



375. Sumuiil of l lie ( 'oteau ; N. D. 



:;7(i. Outcrop of Tertiary grit ; Scotl co., Kas. 



."■77. Rainbow falls of the Missouri ; Montana. 



378. Yellow chalk surmounted by Tertiary grit ; Norton, Kas. 



379-385. Seven views of the " Cresl of the Apishapa," a trap dike on the plains 

 between Trinidad and Pueblo, Col. The dike rises 500 feetabovethe level 

 of Ipishapa creek. It.- northern front i< in part.- L50 feel vertically. 379 i> 

 a view from the west. 380 from the southeast, and 381 from the top looking 

 eastward; 382 shows the top, 383 is a view from the top, and 384 is a near 

 view of the southern side, 385 being also a view from the south. 



