338 TRANS. OF THE ACAD. OF SCIENCE. 



tionen Bezeichnendsten Versteinerungen-Dritte Stark Vermehrte 

 Auflage. 



1852 — D. D. Owen and B. F. Shumard. Descriptions of one New Ge- 

 nus and twenty-two New Species of Crinoidea from the Subcarbonif- 

 erous Limestone of Iowa. — [Report of Geol. Surv. of Iowa, Wiscon. 

 & Minnes., by D. D. Owen, U. S. Geologist. 



1S52 — James Hall. Natural History of New York; Part VI., vol. ii., 

 Palaeontology. 



1853 — B. F. Shumard. In Report of Exploration to the Red River of 

 Louisiana, in the year 1852, under the direction of Captains R. B. 

 Marcy and Geo. B. McClellan. 



1853 — F. Rcemer. Dorycrinus, eien neues Crinoidengeschlecht aus dem 

 Kohlenkalke Nord Amerika's. — [Archiv. Fur. Naturgeschicte, Jahrg. 

 xix., Bd. i. 



1853-1857 — F. J. Pictet. Traitede Pale'ontologie, ou Histoire Naturelle 

 des Animaux Fossiles considered dans leur Rapports Zoologiques et 

 Geologiques ; 4 vols, in 8vo, with Atlas of Plates in 4to. 



1854 — L. De Koninck et H. Le Hon. Recherches sur les Crino'ides du 

 Terrain Carbonifere de la Belgique, suivies d'une Notice sur le Genre 

 Woodocrinus, par L. De Koninck. 



1854 — Sam'l A. Casseday. Beschreibung einer neuer Crinoideengesch- 

 lechts aus dem Kohlenkalkstein, Nord Amerika's. — [Zeitschr. d. 

 Deutschen Geologischen Gesellschaft, Jahrg. 1854. 



1854— R. I. Murchison. Siluria : The History of the oldest known 

 Rocks. 



1854 — E. Billings. On some New Genera and Species of Cystidea from 

 the Trenton Limestone. — [Canad. Journal, vol. ii.. p. 215-250-268. 



1855 — L. P. Yandell. Description of a New Genus of Crinoidea. — [Am. 

 Jour. Sci. & Arts, new ser., vol. xx., p. 135. 



1855 — B. F. Shumard. Descriptions of New Species of Organic Re- 

 mains. — [2d Annual Report of the Geological Survey of Missouri, 

 G. C. Swallow, State Geologist. 



1855 — *F. R<emer. Ueber den Bau von Melonites multipora ein Echinid 

 des Amerikanischen Kohlenkalks. 



1856 — B. F. Shumard and L. P. Yandell. Notice of a New Fossil Ge- 

 nus belonging to the Family Blastoidea, from the Devonian Strata 

 near Louisville, Ky. — [Proc. Acad. Nat. Sci. Philad, vol.8, p. 73. 



1856 — James Hall. Description of New Species of Fossils from the Car- 

 boniferous Limestones of Indiana and Illinois. — [Trans. Albany Inst, 

 vol. iv., No. 1. 



1856 — B. F. Shumard. Descriptions of New Fossil Crinoidea from the 

 Palaeozoic Rocks of the Western and Southern Portions of the United 

 States. — [Trans. Acad. Sci. St. Louis, vol. i., p. 71. 



1856-7 — Ebenezer Emmons. American Geology, containing a State- 

 ment of the Principles of the Science, with full Illustrations of the 

 characteristic American Fossils ; with an Atlas and a Geological Map 

 of the United States. Parts I., II. & VI. Albany. 



1857 — Louis Agassiz. Contributions to the Natural History of the 

 United States of America. First Monograph, 1st Part: Essay on 

 Classification. Vol. i., p. 96. 



1857 — B. F. Shumard. Descriptions of New Species of Blastoidea from 

 the Palaeozoic Rocks of the Western States of North America, with 

 Observations on the structure of the summit of the Genus Pentremi- 

 tes. — [Trans. Acad. Sci. St. Louis, vol. i. 



1857 — S. S. Lyon. Palaeontological Report of the Geological Survey of 

 Kentucky. — [Ky. Geo.. Survey, vol. iii., with Atlas of Plates. 



* This Memoir gives a very minute and satisfactory description of Mtlnnites multipora 

 of Owen and Norwood, and is accompanied with a beautifully engraved quarto plate accu- 

 rately representing the form and structure of this remarkable fossil. 



