Vol. 50.] GOSAU BEDS OF THE GOSAU DISTRICT. 121 



compare my observations with, the views of other workers, to 

 discuss from the results that I have obtained the geological horizon 

 of the beds, and to endeavour to point out their probable English 

 equivalents. 



§ 2. Bibliography. 



In dealing with the literature of the Gosau Beds, I have not 

 referred to accounts published before the classic memoir of Sedgwick 

 and Murchison. These illustrious pioneers of geology visited the 

 Gosau district in the year 1829, and the results of their investigations 

 appeared in a series of papers on the Eastern Alps, which were read 

 before the Geological Society of London at various meetings during 

 the years 1829, 1830, and 1831, and these were finally rearranged 

 and published as a separate memoir, entitled ' On the Structure of 

 the Eastern Alps,' in the ' Transactions ' of the Society (2nd ser. 

 vol. iii. pt. ii.) in 1832. Before the year 1829 the Gosau district had 

 been described in a more or less general manner by Keferstein (' Geo- 

 logic von Teutschland,' vol. v. 1827) and Lill von Lilienbach. The 

 memoir, however, of Sedgwick and Murchison was the first account 

 of any importance. Their views were immediately opposed by Ami 

 Boue, who had studied the Gosau Beds near Wiener Neustadt in 

 1822. These he had taken for Jurassic, but later he classed them 

 as Lower Greensand, in opposition to the views of Murchison and 

 Sedgwick, who maintained that they represented passage-beds 

 between the uppermost Cretaceous and the lowermost Tertiary 

 deposits ; in fact their whole memoir was a gallant attempt to bridge 

 over with the Gosau Beds the great gap between the Secondary and 

 Tertiary systems of Europe. 



Even in 1843 we find Klipstein upholding the Tertiary age of 

 these beds, and, while recognizing the Cretaceous character of the 

 fossils which they contain, he accounted for their presence by 

 supposing that they were simply derived from an older Cretaceous 

 formation, which had been entirely destroyed during the deposition 

 of the Gosau Beds. Then followed various papers and memoirs 

 by Czjzek, Peters, Zekeli, Reuss, Er. von Hauer, Stoliczka, Zittel, and 

 others. I append a list of all the references to, and descriptions of, 

 the Gosau Beds and their organic remains, that I have been able to 

 find, as having appeared since the year 1832. The rich series of 

 organic remains from Gosau and other places have been described by 

 Zekeli, Reuss, Stoliczka, Zittel, Fr. von Hauer, and H. G. Seeley, and 

 the descriptions of some of these authors have enabled me to 

 identify a large number of the fossils which I collected from these 

 beds. 



1832. SEDGwrcK & Murchison.—' On the Structure of the Eastern Alps.' 

 Trans. Geol. Soc. 2nd series, vol. iii. pt. ii. pp. 351 et seqq. 



1843. Klipstein, Dr. A. von. — 'Beitrage zur geologiechen Kenntniss der ost- 

 lichen A] pea,' pp. 23-24. 



1849. Murchison, Sir R. I. — ' On the Geological Structure of the Alps, Apen- 

 nines, and Carpathians.' Quart. Joura. Geol. Soc. vol. v. p. 157. 

 Q. J. G. S. No. 198. k 



