Yol. 55.] BEDDED EOCKS OF COtTNTY WATERFOED. 719 



* Transition rocks,' enumerating the different lithological varieties 

 and mentioning the occurrence of fossils in a cliff east of the 

 Bonmahon river and also inland. 



Sir R. Griffith^ mentioned the ' Transition ' beds of this area in 

 a paper in 1839, and in the same year Major Austin " described the 

 ' Geology round the Shores of Waterford Haven.' 



A paper by T. Austin ^ in 1841 dealt with the ' Elevation of Land 

 on the Shores of Waterford Haven,' and J. Apjohn^ in the same 

 year referred to the district in his Presidential Address to the 

 Geological Society of Dublin. 



Some of the fossils from the Ordovician beds on the coast were 

 described by Portlock ' in 1843, and in 1844 Sir R. Griffith ' 

 mentioned the area in a communication to the British Association 

 entitled ' Certain Silurian Districts of Ireland.' A fuller list of 

 fossils from the beds near Tramore was given by H. IsT. JS'evins^ 

 during the same year, and in another paper ^ certain localities 

 at which ' Silurian ' fossils had been found in Waterford and 

 the adjoining counties were mentioned. Sir R. Griffith^ in the 

 following year discussed ' The Order of Succession of the Strata 

 of 'the South of Ireland,' and referred the ' schistose strata ' of 

 County Waterford to the Lower Silurian. A few of the Waterford 

 fossils were mentioned or described by M'Coy ^° in his Synopsis 

 published in 1846. 



The fullest and most detailed account which had so far appeared 

 on the geology of the county was published by J. Beete Jukes ^^ in 

 1852, entitled 'Sketch of the Geology of the County of Waterford.' 

 In this there is a description of the varieties of igneous rocks, some 

 of which were noticed to be interstratified with fossiliferous sedi- 

 ments. The relations of the ' Silurian ' and Devonian beds are also 

 discussed, and the movements which have affected the district. 

 The fossiliferous limestones at Quillia and Tramore are considered 

 to lie on different horizons, the lowest being at Quillia. 



There is a brief account of the older rocks of County Waterford 

 in Murchison's ' Siluria ' (1st ed. 1854, p. 166). The papers by 

 J. Kelly ^^ on the Palaeozoic rocks of Ireland express the view that 

 the Waterford beds may be compared with the Bala Series of 

 England, and a list of fossiliferous localities in the county is 

 given. An important paper by Jukes & Haughton,^^ entitled 

 * The Lower Palaeozoic Bocks of the South-east of Ireland,' was 



1 Journ. Geol. Soe. Dubl. vol. ii (1839) p. 78. 



2 Proc. Geol. Soc. vol. iii (1839) p. 154. 



3 Ibid. (1841) p. 360. 



* Journ. Geol. 8oc. Dubl. vol. ii (1841) p. 132. 

 ^ ' Eep. Geol. Londond.' 1843, pp. 262, 283, 292, etc. 

 ^ Rep. Brit. Assoc. Trans. (York) p. 46. 



'' Journ. Geol. Soc. Dubl. vol. iii (1844) p. 78. « Ibid. p. 57. 



« Ibid. p. 150. 1° ' Syn. «ilur. Foss. Irel.' pp. 7, IG, 26, etc. 



" Jouri.. Geol. Soc. Dubl. vol. v (1852) p. 147. 



12 Ibid. vol. vii (1856) p. 115; ibid. vol. viii (1860) p. 251. 



13 Trans. Eoy. Irish Acad. vol. xxiii (1859) p. 563. 



