LIST OF WORKS REFERRED TO. 253 



J 844. — King. 'Note on a Magnesian Limestone Species of Chiton.' Ann. and Mag. Nat. Hist., November. 

 184.1. — MuRCHisoN. ' On the Permian System as developed in Russia and other Parts of Europe.' Quarterly 

 Journal of the London Geological Society, vol. i, pp. 81-87. 



iS45. MURCHISON. ~] 



De Verneuil. > ' The Geology of Russia in Europe and the Ural Mountains.' 2 vols. 4to. 

 Von Keyserling.J 

 184.5. — Lonsdale. Op. cit., vol. ii. (Corals of Perm.) 

 1845. — Ad. Brongniart and Morris. Op. cit., vol. ii. (Plants of Perm.) 

 1845.— Robert. Geologie, Mineralogie, et Metallurgie des Voyages de la Commission Scieutifique du 



Nord en Scandinavie, en Laponie, au Spitzberg, et aux Feroe, pendant les annees 1838, 1839, 



et 1840. 

 1845. — Cord A. Betrage zur Flora der Vorwelt. Prag. 

 1845. — Unger. Synopsis Plantarum Fossilium. Leipsise. 

 1846. — Geinitz. Grundriss der Versteinerungskunde. 

 1846. — King. 'On a Magnesian Limestone Species of Chiton.' London Geological Journal, vol. i, 



pp. 10-12. 

 1846. — De la Beche. Memoirs of the Geological Survey, vol. i, p. 268. (Bristol Thecodonts.) 

 1846. — Schmidt. Petrefacten-Buch, oder allgemeine nnd besondere Versteinerungskunde, mit beriiksich- 



tigung der Lagenungsverhaltnisse besonders in Deutchland. 

 1846. — Von Keyserling. Geognostische Beobachtungen auf einer Reise in das Petschora-Land im Jahre 



1843. Petersburg. 

 1846. — King. 'Remarks on certain Genera belonging to the Class Palliobranchiata.' Ann. and Mag. of 



Nat. Hist., vol. xviii. 

 184G. — De Koninck. 'Notice sur quelques Fossiles du Spitzberg.' Bulletin de 1' Academic Royale des 



Sciences, des Lettres, et des Beaux-Arts de Belgique, vol. xiii. 

 1846. — Althaus. Dunker and Von Meyer's Beitriige zur Naturgeschichte der Vorwelt. (Plants). 

 1847. — Tennant. a Stratigraphieal List of British Fossils, &c. 

 1847. — De Koninck. Monographic du Genre Productus. Liege. 

 1847. — King. Neues Jahrbuch fiir Min., Geog., Geol., u. Petrefactenkunde. {Strophalosia and Camaro- 



phoria.) 

 1847. — Giebel. Fauna der Vorwelt, vol. i. 

 1847. — Helmerson. Aulosteges variabilis, ein neuer Brachiopode mit articulirtem Schlosse, aus dem 



Zechstein Russiands. Bull, de la Classe Physico-Mathematique de I'Acad. des Sciences de 



St. Petersbourg, t. vi. No. 9. 

 1848. — King. A Catalogue of the Organic Remains of the Perraien Rocks of Northumberland and 



Durham. 

 1848. — HowsE. 'A Catalogue of the Fossils of the PermiaA System of the Counties of Northumberland 



and Durham.' Transactions of the Tyneside Naturalists' Field Club, vol. i. 



1848. — Geinitz. Die Versteinerungen des deutschen Zechsteingebirges. 



1849. — Naum ANN. ' On the Development of the Permian System in Saxony, as communicated by Professor 



Naumann to Sir Rod. L Murchison, G.C.S., &c. ;' in Quarterly Journal of the Geol. Soc, vol. v, 



part i. 

 1849.- Egerton. 'On the Affinities of the Genus Platysomus.' Quarterly Journal of the Geological 



Society, vol. v, part i, pp. 329-332. 

 1849.— Koninck. Bulletin de la Societe Geologique de France, 2">e s6r., t. vi. {Trigonotreta cristata, &c.) 

 1849. — Bronn. Index Palaeontologicus. 



1849. — Egerton. Quarterly Journal of the Geological Society, vol. vi, part i. {Palceoniscus catopterus.) 



1850. — Ansted. An Elementary Course of Geology, Mineralogy, and Physical Geography. 



