116 BULLETIN NO. 30, UNITED STATES NATIONAL MUSEUM. 



1. 



White, C. A. Observations upon the Geology and Paleontology of Burlington, Iowa, 

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

 235. Boston, 1861. 

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

 covers, or repaging. 



The 50 separates appeared at the date 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 t he first, details of local geology are given, and atten- 

 tion is called lo the fact that in this locality thecli.ange IVomDevonianto Carboniferous took place 

 .so gradually as to render it iiupossiV)le to point 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 sheila, and a list of the genera discovered in the rocks at Burlington, showing the different 

 beds in which they have been recognized. 



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

 rocks at Burlington, Iowa. 



Ithynchonella pustulosa, n. a., White, 1860 226 



Nudeospira barrisii, n.s.,'White,l8m 227-228 



Terehratula buiiingtonensis, n. s., "White, 1860 228-229 



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



Productus lcevicostu8,n..s White, 1860 230-231 



Orthisthiemei,n.s., White, 1860 231-232 



Spirifer solklirostris, u.s.,Vfhit6,lSG0 232-233 



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



2. 



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

 Valley which have been referred to the Chemung 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, 18()2, 8vo., pp. 289-306. Fifty separates printed 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. suhelliptica, n. s., White & Whitfield, 1862 292-293 



Streptorhynchus, King 203 



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



Spirifer, Sowerby 293 



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



Retzia, King 294 



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



Rhynchonella, Fischer 294 



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



Pentainervs, Sowerby 295 



P. lenticidaris, u. s., White & Whitfield, 1862 295 



Oonchifera. 



Aviculopeclen, McCoy 295 



A. lima/urmis, i\. s., White & Whitfield, 1803 293-296 



A. nodocostatuK, u. s.. White & Whitfield, 1862 296 



Mytilus, Linn 296 



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



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



Subgenus OHIwnota, Conrad .' 297 



M. (Orthonota) ventrieosa, a. s.. White & Whitfield, 1862 297-298 



Nucula, Lamai'ck 298 



jV. ioivengis. u. s., White &. Whitfield, 1862 298 



Z«d(i, Schum 298 



L.barrisii, n. s., White & Whitfield, 1862 298 



