252 PERMIAN FOSSILS. 
1839.—Minstmr. Beitrage zur Petrefactenkunde. Erster Heft. (Riechelsdorf Fishes, and Strophalosia 
Goldfussi.) 
1839.—Morris. ‘A Systematic Catalogue of the Fossil Plants of Britain.’ Magazine of Natural History, 
N.S., vol. i. (Ruppersdorf Ferns, Psaronius, &c.) 
1840.—Von Bucu anp Lu Coca. Essai d'une Classification et d’ume Description des Delthyris ou Spirifers 
et Orthis. Mém. Soc. Géol. de France, tome iy. 
1840.—Grrmar. Die Versteinerungen des Mansfelder Kupfer-schiefers. Halle. 
1840.—Fiscuer pr Waipu. Bulletin de la Société Impériale des Naturalistes de Moscou. (Plants, and 
Shells of Bielebi.) 
1840.—Lronnarp. Geologie oder Naturgeschichte der Erde, &c. Dritter Band. 
1841.—J. pu C. Sownrpy. Mineral Conchology of Great Britain, vol. vii. (Cledothyris pectinifera.) 
1841.—Acassiz. Neues Jahrbuch. (Acrolepis Dunkeri, and A. asper.) 
1841.—Munstrer. Beitrage zur Petrefacten-kunde, Heft iv. (Strophalosia Goldfussi.) 
1841.—Murcuison. 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.—Eenrton. 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. &e. Annals and Magazine of Natural History, vol. vn. 
1841.—Fiscuer DE WaLtpunrm. Bull. de la Soc. Imp. des Nat. de Moscou. (Rhopalodon Wangenhewm.) 
1841.—Owen. ‘Report on British Fossil Reptiles.’ Report of the Eleventh Meeting of the British 
Association. (Thecodonts.) 
1841.—Von Bucu. ‘Ueber Productus oder Lepteena.’ Abhandlungen der Konig. Akad. der Wissenschaften 
zu Berlin. (Productus horridus.) 
1841.—Grinitz. ‘Ueber Organische Reste im Zechstein bei Altenburg, Ronneburg und Gera.’ Neues 
Jahrbuch fiir Mineralogie, &c. (Nautilus Freieslebeni, Schizodus Schlotheimi, &c.) 
1842.—Kurorea. ‘Beitrag zur Palzeontologie Russlands.’ Verhandlungen der Kaiserlichen Russischen 
mineralogischen Gesselschaft zu St. Petersburg. (Palliobranchs, &c.) 
1842.—Murcuison. ‘A Second Geological Survey of Russia in Europe.’ Proceedings of the London 
Geol. Society, vol. in, p. 717-730. 
1842.—Guinirz. ‘ Ueber einige petrefakte der Zechstein und Muschelkalk.’ Neues Jahrbuch. (S¢rophalosia 
excavata, Petraia profunda.) 
1842-1844.—Brown. Illustrations of the Fossil Conchology of Great Britain and Ireland. 
1842-1843.—MunstEr and Atruaus. Beitragen zur Petrefactenkunde. (Fishes, Reptiles, &c.) 
1842.—FiscHER DE WaLDHEIM. Bulletin de la Soc. Imp. des Nat. de Moscou. (Paleoniscus Tcheffhini, §c.) 
1843.—PortLock. Report on the Geology of the County of Londonderry, and of parts of Tyrone and 
Fermanagh. (‘ Poikilitic’ fossils of Tyrone.) 
1843.—Mornts. Catalogue of British Fossils, &c. 
?1843.—Go.pFuss. Petrefacta Germanie. (Turbo helicinus—T. Meyert.) 
1843.—GEINITZ AND GUTBIER. Geea von Sachsen. 
1843.—Murcutson. ‘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.—Ag@assIz. ‘Synoptical Table of British Fossil Fishes, arranged in the Order of the Geological 
Formations.’ 13th Report of the British Association. 
1844.—Kurorca. ‘Zweiter Béitrag zur Paleontologie Russlands.’ Verhandlungen der Kaiserlichen 
Russischen mineralogischen Gesellschaft zu St. Petersburg. 
1844.—De Vernevit. ‘Note sur les Equivalents du Systeme Permien en Europe.’ Bulletin de la Société 
Géologique de France, 2™e série, tome 1. 
1844.—Kine. ‘On a New Genus of Palzeozoic Shells.’ Ann. and Mag. of Natural History, vol. xiv. 
(Allorisma, &e.) 
