448 N. H. DAKTON — CATALOG OF PHOTOGRAPHS 



1406. Pseudopecopt'eris obtusiloba (Stb. ) Lx. , var. dilatata Lx. MSS. Kanawha series, 



West Virginia (No. 1561). 



1407. Pseudopecopleris obtusiloba (Stb.) Lx. Kanawha series, West Virginia (No. 



1562). 



1408. Dictyopteris sub-brongniartii Gr. Ey. Coal Measures (Westphalien), France 



(No. 1563). 



1409. Spirophyton. A probable Pseudophyte. Lower Carboniferous, near War- 



ren, Pennsylvania (No. 1564). 



1410. Aster opliyllites gracilis Lx. Fruiting spikes. Potts ville series, Dade county, 



Georgia (1565). 



1411. Arthrophycus Itarlanl (Conr.) Hall. Medina sandstone. Locality unknown 



(No. 1566). 



1412. Arthrophycus harlani (Conr.) Hall. Probably from Medina sandstone. Lo- 



cality unknown (No. 1567.) 



1413. Callipteridium tracyanum Lx. Upper Potts ville (Walden SS), Tracy City, 



Tennessee (No. 1568). 



1414. Neuropteris clarksoni Lx. High anthracite coal ("G"), Olyphant, Pennsyl- 



vania. Photograph reduced (No. 1569). 



1415. Pseudophyte. Casts of trails of molluscs. Formation and locality unknown 



(No. 1570). 



1416. Eurypterus mansfieldi, Hall. Figured in Second Geological Survey of Penn- 



sylvania, page 3, plate 5, figure 3. Specimen from just below Darlington 

 cannel coal, near Cannelton, Darlington county, Pennsylvania (No. 1571). 



1417. Natural casts of Atrypa, Spinosa, Spirifer, Rhynchonella, Pelicypods, and 



Tentaculites. Horizon, Hamilton. A splendid illustration of associated 

 Hamilton species (No. 1572). 



1418. Natural sections of spire-bearing Brachiopods ; also a few Tentaculites pre- 



served. Horizon probably Lower Helderberg (No. 1573). 



SUBJECT CATALOG 



Ant Hill 



425. Ant hill at Pueblo, Colorado. 



Bad Lands 



128. Limestone ridge and gully, weathering, Bettles river, Alaska. 

 682, 683. Scotts Bluff, Nebraska. 

 691. Northeast of Chadron. Nebraska. 



688, 692, 693. Toadstool park, near Adelia, Sioux county, Nebraska. 

 695. Titanotherium sands east of Adelia, Nebraska. 



1066, 1067. Titanotherium beds, Corral draw, edge of Big Bad lands of South 

 Dakota . 



1068. Big Bad lands, Protoceras sandstones on Oreodon clays, head of Indian draw, 



South Dakota. 



1069. Big Bad lands, Protoceras sandstone area, head of Cottonwood draw, South 



Dakota. 



1070. Big Bad lands, Indian draw, South Dakota. 



