REPORT OP COMMITTEE ON PHOTOGRAPHS 473 



1784 (443). "Toadstool j^ark," Bad lands near Adelia, Sioux county, South Da- 



kota. By N. H. Dai-ton, 1898. 



1785 (444). "Toadstool park," Bad lands near Adelia station, Sioux county, 



Nebraska. By N. H. Darton, 1898. 



1786 (445). Looking down North Platte river at the Wyoming-Nebraska line. By 



N. H. Darton, 1898. 



1787 (465). Granite needles near Harney peak. Black hills, South Dakota. By 



N. H. Darton, 1898. 



1788 (468). Granite needles near Harney peak, Black hills. South Dakota (south- 



ern group). By N. H. Darton, 1898. 



1789 (472). Cone-in-cone concretion in Pierre shale, southeast of Hot Springs, 



South Dakota. By N. H. Darton, 1898. 



1790 (473). Gypsum in, red beds, Hot Springs, Black hills, South Dakota. By 



N. H. Darton, 1898. 



1791 (474). Jurassic sandstone on supposed Triassic red beds, 7 miles south of Hot 



Springs, Black hills. South Dakota. By N. H. Darton, 1898. 



1792 (479). Faulted Middle Jurassic sandstone near Buffalo gap. Black hills, South 



Dakota. By N. H. Darton, 1898. 



1793 (519). Protoceras sandstone ai"ea, Big Bad lands, South Dakota. ^ By N. H. 



Darton, 1898. 



1794 (520). Protoceras sandstone area. Big Bad lands, South Dakota. By N. H. 



Darton, 1898. 



1795 (522). Protoceras sandstone area, Big Bad lands. South Dakota. By N. H. 



Darton, 1898. 



1796 (523). Protoceras sandstone area, Big Bad lands. South Dakota. By N. H. 



Darton, 1898. ' 



1797 (524). Protoceras sandstone area. Big Bad lands, South Dakota. By N. H. 



Darton, 1898. 



1798 (526). Natural bridge, Protoceras sandstone area, Big Bad lands, South Da- 



kota. By N. H. Darton, 1898. 



1799 (531). Protoceras sandstone area. Big Bad lands. South Dakota. By N. H. 



Darton, 1898. 



1800 (480). Natural bridge in middle Jurassic sandstone near Buffalo gap. Black 



hills. South Dakota. By N. H. Darton, 1898. 



1801 (506). Big Bad lands of South Dakota, in the vicinity of the Flour trail, look- 



ing north. By N. H. Darton, 1898. 



1802 (507). Looking vpest over portion of Big Bad lands of South Dakota near 



Flour trail. By N. H. Darton, 1898. 



1803 (509). Looking west over portion of Big Bad lands of South Dakota from near 



the Flour trail. By N. H. Darton, 1898. 



1804 (510). Looking southwest over a portion of Big Bad lands of South Dakota 



near Flour trail. By N. H. Darton, 1898. 



1805 (515). Sandstone lenses near Flour trail, Big Bad lands, South Dakota. By 



N. H. Darton, 1898. 



1806 (517). Columns of clay capped by sandstone near Flour trail. Big Bad lands, 



South Dakota. By N. H. Darton, 1898. 



1807 (532). Looking down head of South fork of Coral draw. Big Badlands, South 



Dakota. By N. H. Darton, 1898. 



1808 (536). Big Bad lands of South Dakota in the vicinity of the Flour trail, look- 



ing west. By N. H. Darton, 1898. 



LXVII— Bull. Geol. Soc. Am., Vol. 10, 1898 



