252 PERMIAN FOSSILS. 



1839. — MiJNSTEK. Beitrage zur Petrefactenkunde. Erster Heft. (Riechelsdorf Fishes, and Strophalosia 



GoJdfussi.) 

 1839. — MoRuis. 'A Systematic Catalogue of the Fossil Plants of Britain.' Magazine of Natural History, 



N.S., vol. i. (Ruppersdorf Ferns, Psaronius, &c.) 

 1840. — Von Buch and Le Coca. Essai d'une Classification et d'une Description des Delthyris ou Spirifers 



et Orthis. Mem. Soc. Geol. de France, tome iv. 

 1840. — Gekmar. Die Versteinerungen des Mansfelder Kupfer-schiefers. Halle. 

 1840. — Fischer de Waldheim. Bulletin de la Societe Iinperiale des Naturalistes de Moscou. (Plants, and 



Shells of Bielebi.) 

 1840. — Leonhard. Geologic oder Naturgeschichte der Erde, &c. Dritter Band. 

 1841. — J. DE C. SowERBY. Mineral Conchology of Great Britain, vol. vii. {Cleiothyris pectitiifera.) 

 1841. — Agassiz. Neues Jahi'buch. {Acrolepis Dunkeri, and A. asper.) 

 1841. — MiJNSTER. Beitrage zur Petrefacten-konde, Heft iv. {Strophalosia Goldfussi.) 

 1841. — MuRCHisoN. A Letter to His Excellency M. Fischer de Waldheim. Bull, de la Soc. Imp. des 



Nat. de Moscou ; and Lond. Edin. and Dublin Phil. Mag., vol. xix. (Discovery of Zechstein 



Fossils in Perm, Russia.) 

 1841. — Egerton. a Catalogue of Fossil Fish in the Collections of the Earl of Enniskillen, F.G.S., &c. ; 



and Sir Philip Egerton, Bart. F.R.S. &c. Annals and Magazine of Natural History, vol. vii. 

 1841. — Fischer de Waldheim. Bull, de la Soc. Imp. des Nat. de Moscou. {Rhopalodon Waiigenheimi.) 

 1841. — Owen. 'Report on British Fossil Reptiles.' Report of the Eleventh Meeting of the British 



Association. (Thecodonts.) 

 1841. — Von Buch. ' Ueber Productus oder Lepteena.' Abhandlungen der Konig. Akad. der Wissenschaften 



zu Berlin. {Productus horridus.) 

 1841. — Geinitz. 'Ueber Organische Reste im Zechstein bei Altenburg, Ronneburg und Gera.' Neues 



Jahrbuch fiir Mineralogie, &c. {Nautilus Freiesleheni, Schizodus Schlotheimi, &c.) 

 1842. — KuTORGA. 'Beitrag zur Palseontologie Russlands.' Verhandlungen der Kaiserlichen Russischen 



mineralogischen Gesselschaft zu St. Petersburg. (Palliobranchs, &c.) 

 1842. — MuRCHisoN. 'A Second Geological Survey of Russia in Europe.' Proceedings of the London 



Geol. Society, vol. iii, p. 717-730 

 1842. — Geinitz. ' Ueber einige petrefakte der Zechstein undMuschelkalk.' Neues Jahrbuch. {Strophalosia 



excavata, Petraia profunda.) 

 1842-1844. — Brown. Illustrations of the Fossil Conchology of Great Britain and Ireland. 

 1842-1843.— MuNSTER and Althaus. Beitragen zur Petrefactenkunde. (Fishes, Reptiles, &c.) 

 ] 842. — Fischer de Waldheim. Bulletin de la Soc. Imp. des Nat. de Moscou. {Palceoniscus Tcheffkini, ^'c.) 

 1843. — PoRTLOCK. Report on the Geology of the County of Londonderry, and of parts of Tyrone and 



Fermanagh. ('Poikilitic' fossils of Tyrone.) 

 1843. — Morris. Catalogue of British Fossils, &c. 



? 1843. — GoLDFUSS. Petrefacta Germanise. {Turbo helicinus — T. Meijeri.) 

 1843. — Geinitz and Gutbier. Gsea von Sachsen. 

 1843. — MuucHisoN. ' The Permian System as applied to Germany, with collateral Observations on similar 



Deposits in other Countries, &c.' 13th Meeting of the British Association, pp. 52-54. 

 1843.— Agassiz. 'Synoptical Table of British Fossil Fishes, arranged m tlie Order of the Geological 



Formations.' 13th Report of the British Association. 

 1844. — KuTORGA. 'Zweiter Beitrag zur Palseontologie Russlands.' Verhandlungen der Kaiserlichen 



Russischen mineralogischen Gesellschaft zu St. Petersburg. 

 1844. — De Verneuil. 'Note sur les Equivalents du Systfeme Permien en Europe.' Bulletin de la Societe 



Geologique de France, 2™^ serie, tome i. 

 1844. — King. 'On a New Genus of Palseozoic Shells.' Ann. and Mag. of Natural History, vol. xiv. 



{Allorisma, &c.) 



