20 RECHERCHES SUR LES CRINOIDES. 



1841. J. Mùller. — Ueber den Bau des Penlacrinus Capul Medusae. (Abhandlungen lier kbnigli- 

 chen Académie der Wissenschafjîen zu Berlin, 1 S4- 1 , p. 177.) 



1841-1848. E. Eichwald. — Die Urwelt Russlands, durch Abbildungen erlàutert; 4 vol. in-4°, mit. 

 Steindr. Taf. 



1841. P. Phillips. — Figures and descriplions of llie palaeozoïc fossils of Cornwall, Devon and 



West-Somerset, observed in ihe course of the ordnance geological survey of that dis- 

 trict; in-8", witb pi. 

 184-2. D.-D. Owen. — Art. II, regarding human foot-prints in solid limestone. (Sillimaris 

 American Journal; vol. 45, p. 14.) 



1842. W. Hisinger. — Fôrteckning ofver en geognostisk och petrefactologisk samling Iran 



Suerige och Norrige; in -4°. 



1842. R. Griffitii. — ■ Notice respecting the fossils of the mountain- limestone of Ireland , as 

 compared with those of Great Britain, and also wilh the Devonian System; in-4". 



1842. A. Volborth. — Ueber die Echino-Encrinen, nnd die Identitât des contractilen Theiles irhes 

 Slieles mit dem Cornulites serpentarius. [Bulletin scientifique de l'Académie des scietices 

 de S'-Pélersbourg , tomeX, n° 19.) 

 "1842. G. Sandberger. — Vorlâulige Uebersicht ûber dié eigenthûmlichen bei Villmar an der 

 Lahn auftretenden jûngeren Kalkschichten der àlteren (sog. Uebergangs) Formation, 

 besonders nach ihren organischen Einschlûssen und Beschreibung ihrer wesentlichsten 

 neuen Arten, nebst einem Vorwort ûber Namengebung in der Naturbeschreibung 

 ûberhaupt und in der Palâontologie inshesondere. (Neues Jahrbuch fur Minéra- 

 logie, etc., von Leonbardt und Bronn; 1842, p. 379.) 



1842. A. d'Orbignï. — Voyage dans l'Amérique méridionale, exécuté pendant les années 1826- 

 1833; 4 me partie : Paléontologie. 

 ' 1842. T. Austin and T. Austin jun. — Proposed arrangement of the Echinodermata , particu- 

 larly as regards the Crinoîdea and a subdivision of the class Adelostella (Echinidiae). 

 (Ann. and magaz. ofnal. hist., first ser., vol. X, p. 106 ) 



1842. Landner Vanuxem. — Geology of New-York. Part. III, comprising the survey of the third 

 geological district; in-4°, with fig. 



1842. d'Archiac and E. de Verneuil. — Memoir on the fossils of the older deposits in the Rhenish 

 provinces, preceded by a gênerai survey of the fauna of the palaeozoïc rocks, and fol- 

 lowed by a lahular list of the organic remains of the Devonian System in Europe, in-4°, 

 with pi. (Transactions of the geological society of London, 2 d ser., vol. VI; part. II ) 



1842. T.-A. Conrad. — Observations on the silurian and Devonian Systems of the United States, 



with descriplions of new organic remains. (Journal of the Academy of natural 

 sciences of Philadelphie! , vol. VIII, part. II, p. 228.) 

 1842-1851. L. De Koninck. — Description des animaux fossiles qui se trouvent dans le terrain 

 carbonifère de Belgique; 2 vol. in-4°, avec pi. et supplément. 



1843. H.-G. Bronn. — Palaeontologische Collectaneen, hauptsàchlich als beliebiges Ergânzungs- 



Heft zum neuen Jahrbuch fur Minéralogie, Géologie, Geognosie und Petrefakten- 

 kunde, Jahrgânge 1840-1845, dienend; vol. in-8°. 

 1845. J. Hall. — Geology of New-York. Part. IV, comprising the survey of the fourth geological 

 district; in-4", with fig. 

 * 1843. T. Austin and T. Austin jun. — Descriptions of several new gênera and species of Cri- 

 noîdea. (Annals and magazin of natural history , vol. XI, p. 195.) 



