"--'Trans. Geol. Soc.,' ser. 2, vol. iii.
Sedgwick.
(2) 'The Geology of Russia in Europe.' Murchison, De Verneuil, and
Von Keyserling.
(3) 'Siluria,' Murchison.
(4) 'Permische System in Sachsen.' Geinitz and Gutbier.
(5) 'Die Versteinerungen des Deutschen Zechsteingebirges,' Geinitz.
(6) 'Die Animalischen Ueberreste der Dyas.' Geinitz.
(7) 'Monograph of the Permian Fossils of England' (Palaeontographical
Society). King.
(8) 'Monograph of the Permian Brachiopoda of Britain'
(Palaeontographical Society). Davidson.
(9) "On the Permian Rocks of the North-West of England and their
Extension into Scotland"--'Quart. Journ. Geol. Soc.,' vol. xx.
Murchison and Harkness.
(10) 'Catalogue of the Fossils of the Permian System of the Counties
of Northumberland and Durham.' Howse.
(11) 'Petrefacta Germaniae.' Goldfuss.
(12) 'Beitraege zur Petrefaktenkunde.' Munster.
(13) 'Ein Beitrag zur Palaeontologie des Deutschen Zechsteingebirges.'
Von Schauroth.
(14) 'Saurier aus dem Kupfer-schiefer der Zechstein-formation.' Von
Meyer.
(15) 'Manual of Palaeontology.' Owen.
(16) 'Recherches sur les Poissons Fossiles.' Agassiz.
(17) 'Ichnology of Annandale.' Sir William Jardine.
(18) 'Die Fossile Flora der Permischen Formation.' Goeppert.
(19) 'Genera et Species Plantarum Fossilium.' Unger.
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