V-THE WRITINGS OF JAMES HALL. 



Hall, James. Organic remains. Descriptions of organic remaiiis collected by Cap- 

 tain J. C. Fr6mont, in the geographical survey of Oregon and North California. 

 •<^Rep. Expl. Exp. to the Rocky Mountains and to Oregon and North California,, 

 by J. C. Fremont. Appendix R, i)p. 304-;ilO, pis. i-iv. Washington, 184.S. 



Page. 



Sphenopteris fremonti, n. s.. Hall, 1845, pi ii, figs. 3. 3a .'!04 



S.triloba, n. s.,Hall, 1845, pi. i, fig. 8 304 



S. (f) pauci/ulia, U.S., Hall, 1845, pi. ii, figs, la-d 304-305 



S. (?) /rrfoiifffn.n. s.Hall, 184.5, pi. ii, fig.s. 2, 2 a 305 



Oloasopteris phillipsii. n. s. . Hall, 1 845, pi. ii, figs. 5, 5 a-c 305-306 



Pecopteris undulata. n. s.. Hall, 1845, pi. i, figs. 1, 1 a 306 



Pecopteris undulata var.. Hall, 1845, pi. i, figs. 2, 2 a, 6 306 



Pecopteris {?) odontopter aides, n. s., Hall, 1845, pi. i, figs. 3, 4 306 



Trichopteris, n. g., Hall, 1 845 306 



T./Jamm<o«a,n..s.,Hall, 184.i,pl. ii, fig.6 306-307 



T. graeilin, Ji. s. . Hall, 1845, pi. i, fig. 5 307 



Stems of f»;rn,s pi. i. fig. 7 307 



Leaf of a Dycot.yledoudus plant (?), pi. ii, fig. 4 307 



Jf?/« ?«?imfndra, n, s.. Hall, 1845, pi. iii, figs. 1, 2 307 



Nucula impressa. (?) n. .>*., Hall, 184.5, pi. iii, fig. 3 308 



Cytherea parvula, n. s.. Hall, 1845, pi. iii, figs. 10, 10 a 308 



Pleurotoviaria uniangulata, n. s.. Hall, 1845, pi. iii, figs. 4, 5 308 



Cerithium tenerum, n. s., Hall, 1 845, pi. iii, figs. 6, 6 a 308 



Ceritkium fremonti, n. s., Hall, 1845, pi. iii, figs. 7, 7 a 308 



Natica (0 oecidentaUs, n. s.. Hall, 184.5, pi. iii, figs. 8, 8 o 308-309 



Turritella bilineata, n. s , Hall. 1845, pi. iii, fig. 9 309 



Oerithium nodulosuvi, n. s.. Hall, 184.5, pi. iii, figs. 11, 12 309 



Turbo paludinaefnrmis, n. s.. Hall, 1845, pi. iii, fig. 13 309 



Leaves of Dirotyledonous plants, j)! iii, flg.s. 14, 15 309 



Inoceramus ?, Hall, 1845, pi. iv, figs. 1, 1 a 309-310 



Inoceramus ?, Hall, 1845, pi. i v, fig. 2 310 



2. 



Hall, Jamks. Description of new or rare species of fossils, from the Palaeozoic se- 

 ries. <^Rep. on the Geology of the Lake Superior Land district, by J. W. Foster 

 and J. D. Whitney. Part ii, chapter xiii, pp. 203-231, pis. xxiiia-xxxv. Wash- 

 ington, 1851. 



POTSDAM AND CALCIFER0U8 SANDSTONES. 



Page. 



Liiigula prima, Conrad, pi. xxiii, figs. 1 a-g 204 



Lingula antiqita. Hall, pi. xxiii, figs. 2 a-c 204-205 



Trilobites of the Potsdam Sand.stone 205 



I>ikell[o]cephalus, D. D. Owen, ])1. xxiii, flg.s. 3a-e, and fig. 4 205-206 



FOSSILS FKOM THE CHAZY, BHSDS EYE, BLACK KIVEK, AND TRENTON LIMESTONES AND HUDSON RIVER 



GKOUI'. 



Phenopora m ultiporu. n. s.. Hall, 1851, pi. xxiv, figs. \ a,b 206-207 



Clathropora flabellata, u. s., Hall, 1851, pi. xxiv, figs. 2a, 6 207 



(Jh(xtetes lycuperdon. Say, pi. xv, figs. 1 o-d 207-208 



Schizocrinus 7iodostis ? . pL xxv, flgs. 2 a-c 208 



231 



