LITERATURE OF THE SUBJECT. 109 



Redfern, on the Nature of the Torbane Hill and other Varieties of 



Coal, Brit. Assoc. Liverpool, 1854. 

 Roehl, A. von, Fossile Flore der Steinkohlen Formation Westphalens. 

 Saporta, Etudes sur la Vdgdtation du Sud-Est de la France a I'Epoque 



Tertiaire, Annales des Sciences Naturelles, ser. 4, tome xvi. 309, 



xvii. 191, xix. 5 ; ser. 5, tome iii. 5, iv. 5. 

 Schenk, Professor, die Fossile Flore der Nordwest Deutschen Wealden 



Formation. 

 Schimper, Traitd de Paldontologie Vdgdtale, 1870-71. 

 Tate, on the Fossil Flora of the Mountain Limestone Formation of the 



Eastern Borders, in connection with the Natural History of Coal 



(in Johnstone's Eastern Borders). 

 Torbane Coal, as noticed in the Report of the Trial as to the sub- 

 stance called Torbane Mineral or Torbanite. 

 linger. Genera et Species Plantarum Fossilium. 



Chloris Protogsea. 



Le Monde Primitive (a work which contains picturesque views 



of the supposed state of the earth at different geological epochs), 

 on the Flora of the Eocene Epoch, Journ. Bot., iii. 39. 



Weber and Wersel, Die Tertiarflore der Nieder Sheinescher Braun- 



kohlen Formation. 

 Williamson, W. C, on the Organisation of the Fossil Plants of the 



Coal Measures, Ann. Nat. Hist., 1871, p. 134. 

 on the Structure and Affinities of the Plants hitherto 



known as Sternbergise, Mem. Manch. Lit. and Phil. Soc, ix. 

 on a New Form of Calamitean Strobilus, from the Lancashire 



Coal Measures, Mem. Lit. Phil. Soc. Manchester, vol. iv. 3d 



series. 

 on the Structure of the AVoody Zone of an Undescribed Form 



of Calamite, Mem. Lit. Phil. Soc. Manchester, vols. iv. and viii. 



3d series. 



on Volkmannia Dawsoni, ibid. 1870-71. 



on Zamia gigas (Williamsonia gigas), Linn. Trans., xxvi. 663. 



—.^—. on the Organisation of Fossil Plants of the Coal Measures, 



Part I., Calamites, Phil. Trans. R.S.L., vol. 161, p. 477. 

 Witham, on the Structure of FossU Vegetables. 

 Yates, on Zamia gigas. Proceed. Yorkshire Phil. Soc, April 1847. 

 Young, J., and Armstrong, Jas., on the Carboniferous Fossils of the 



West of Scotland, Trans. Geol. Soc. Glas., vol. iii. 



Besides geological treatises such as those of Ansted, 

 Beudant, Jukes, Lyell, and others. 



