196 



MISS G. L. ELLES AND MISS I. L. SLATER ON THE [May 1906, 



Murchison, 1854. 



' Siluria ' 1st ed. pp. 137 



et seqq. 



Muechison, 1857. 



Quart. Journ. Geol. Soc. 



vol. xiii, p. 290. 



Egeeton, 1857. 



Quart. Journ. Geol. Soc. 



vol. xiii, p. 282. 



Muechison, 1859. 



' Siluria ' 3rd ed. 



chapt. vii. 



H ABLET, 1861. 



Quart. Journ. Geol. Soc. 

 vol. xvii, p. 542. 



Curlet, 1863. 

 Quart. Journ. Geol. Soc. 



vol. xix, p. 175. 



Lightbodt, 1863. 



Quart. Journ. Geol. Soc. 



vol. xix, p. 368. 



Beodie, 1869. 



Quart. Journ. Geol. Soc. 



vol. xxv, p. 236. 



Lightbodt, 1869. 



Geol. Mag. vol. vi, 



p. 353. 



Marston, 1870. 



Geol. Mag. vol. vii, 



p. 408. 



Maeston, 1882. 



' Guide to the Geology 



of Ludlow.' 



In 1854 his famous ' Siluria ' was published, and in a 

 later paper, dated 1857, in describing the section seen 

 in the Ludlow railway-cutting worked by Lightbody, 

 he notes the existence of what may be a second Bone- 

 Bed, and draws attention to the excellent section 

 exposed in the right bank of the Teme. He considers 

 that the beds in the railway-cutting are faulted against 

 the Old Ked Sandstone to the north-west. 



In another paper, published in the same year, Sir Philip 

 Grey Egerton dealt with the fish-remains of the 

 Ludlow district. 



In the 3rd edition of 'Siluria' Murchison gives an 

 excellent summary of all the work done in the district 

 up to date. He limits the use of the term Tilestones 

 to the upper members of the Transition Series, and 

 uses Downton-Castle Stone as the equivalent of 

 the term Down ton Sandstone used by Phillips in 

 the Malvern District. He notes Marston's discovery 

 at Norton of the Lower Bone- Bed, surmounted by beds 

 with Platyschisma helicites as the characteristic fossil, 

 and a similar succession made out by Lightbody north 

 of Whitcliffe Coppice. Nevertheless, he does not wish 

 to separate the lower bed from the bed with Platy- 

 schisma helicites. Also, while acknowledging the 

 apparently higher position in the series of the Bone- 

 Bed found in the railway-cutting, Murchison does not 

 seem to be convinced that it is not the same as the 

 lower one. 



In a paper published in 1861, J. Harley gives further 

 evidence of the existence of at least two Bone-Beds,, 

 one immediately below and the other just above the 

 Downton Sandstone ; he also describes the remains 

 found in them. 



T. Curley, writing in 1863, deals chiefly with the super- 

 ficial accumulations round Ludlow, and illustrates his 

 paper by a small map and a section. Kobert Lightbody, 

 writing in the same year, describes a section in the 

 Aymestry Limestone at Mocktree; he also suggests 

 the existence of two faults in the Whitcliffe at Ludlow,, 

 throwing up the lower beds. 



The Rev. P. B. Brodie describes thf Ludlow-Lane section 

 as follows : — (1) Downton Sandstone ; (2) Platy- 

 schisma -helicites Shale ; (3) Bone-Bed ; (4) Strata 

 with fragments of Pterygotus, etc. ; (5) Upper Ludlow. 

 He seems to be the first to recognize the Platy schism a- 

 helicites Bed at Ludlow, and lie regards it as distinct 

 from the lower Bone-Bed. 



Lightbody, writing in the Geological Magazine of the 

 same year, suggests the existence of a fault running 

 from the Titterstone to Downton-Castle Bridge, and 

 also infers that the gorge of the Teme at Ludlow is 

 tectonic in origin. 



A valuable paper on the beds with which we are dealing 

 was published in 1870 by Alfred Marston, a local 

 Ludlow geologist. In this work the author, although 

 obviously well acquainted with the details of many 

 of the sections in the neighbourhood, contents him- 

 self with connecting them together in a generalized 

 account, whereby much of the value of his work is 

 lost. 



In 1882 the same author published a useful local ' Guide 

 to the Geology of the Ludlow District,' in which the 

 chief localities for fossils are described. 



