116 BULLETIN NO. 30, UNITED STATES NATIONAL MUSEUM. 



1. 



White, C. A. Observations ui)on tlio Geolo<^y and Paleontology of Burlington, Iowa, 

 and its Vicinity. <Bost. Jour. Nat. Hist., (Bost. Soc. Nat. Hist.) vol. vii, pp. 209- 

 235. Boston, 18G1. 



Same. Boston, 1860, 8vo., p. 209-235. Fifty separates printed without title-page, 

 covers, or repaging. 



The 50 separateH appeared at the (late mentioned, but Part II of vol. vii, according to a note 

 inserted in it, did not appear until December, 1862, although it bears the imprint 1861. 



This paper is divided into two parts : in the first, details of local gcoloi;y are given, and atten- 

 tion is called to 1 lie fact that in this locality lliechan're from Devonian to Carboniferous took place 

 so gradually as to render it impossible to j)oiul out the exact line where one ends and the other 

 begins. A section of the rocks at Burlington is given with a table showing the vertical range 

 of shells, and a list of the genera discovered in the rocks at Uurlington, showing the diflerent 

 beds in which they have been recognized. 



The second part contair.s descriptions of seven new species of Brachiopoda from the Chemung 

 rocks at Burlington, Iowa. 



Page. 



Rhynchonella pvstiiloga,n. s , "White, 1860 226 



Nudcnspira barrisii, n. s., White, 1860 227-228 



Terebratula hurlingtonensis, n. s.. White, 1860 228-229 



Athyris crassieardinalis, n. s., White, 1860 229-230 



Productus l(evicostus,n.9 White, 1860 230-231 



Orthisthumei,i\.»., White, 1860 231-232 



Spm^er«o/»diro««m,n.s., White, 1860 232-233 



This part also contains a list of described fossUs recognized in the Burlington beds. . 233-235 



2. 



White, C. A., and Whitfield, R. P. Observations upon tlie Rocks of the Mississippi 

 Valley which have been referred to the Cbeinung Group of New York, together 

 with Descriptions of New Species of Fossils from the same horizon at Burlington, 

 Iowa. <Proc. Bost. Soc. Nat. Hist., vol. viii, pp. 289-306. Boston, 1862. 



Same. Boston, 1862, 8vo., pp. 289-306. Fifty separates jirinted without title-page, 

 covers, or repaging. 



Thirty-one species of Lower Carboniferous fossils are described in this paper. 



Description of new species. 



Page. 



Brachiopoda. 



Orthis, Dalman 292 



O. subellipUca, n. s., White & Whitfield, 1862 292-293 



Streptorhynchus, King 205 



S. inflatiis, n. s.. White & Whitfield, 1862 293 



Spiri/er, So werby 293 



S. hirtus, n. s.. White & Whitfield, 1862 293-294 



Retzia, King 294 



n. sexplicata, n. s.. White & Whitfield, 1862 294 



Rhynchonella, Fiaclic^r 294 



R. opposita, n. s., White & Whitfield, 1862 294-295 



Pentamerus, Sowcrby 295 



P. lenticiilaris, n. s., White & Whitfield, 1862 295 



Conchi/era. 



Avicnlu-pccten, McCoy 295 



A. limaformis, n. .s., White & Whitfield, 1862 295-296 



A. norlocogtatus, n. s.. White & Whitfield, 1862 290 



Mytiliis, Linn 296 



M.fehristnaiuH. n. s.. White & Whitfield, 1862 296-297 



M. occidentalis, n. s.. White & Whitfield, 1862 297 



Subgenus Orthonola, Conrad 297 



M. {Orthonola) ventricosa, n. s.. White &. Whitfield, 1862 297-298 



jyiiciila, Laniarok 298 



X. imr.-nsis. ii. 8., White & Whitfield, 1862 298 



Leda, Srhiim 298 



L.barrisii, n. s., Whit« & Whitfield, 1862 298 



