30 L. Richardfion — Rhcetic Roc/cs of Wancicks/iire. 



Soiae distance away to the west, somewhere in the escai-pnient, 

 Tomes discovered a number of liliaetic beds. Wright published 

 Toiues's notes in 1860 ' and reproduced them in liis monograph in 

 1878.- In the same year, liowever, Tomes liad occasion to publish 

 tlie details with which he had furnished Wright ; but he made some 

 additions which are very helpful.^ 



Snitterfield. — Brodie, as already mentioned, thought there was 

 evidence in a section displayed in an excavation made in connexion 

 with the waterworks at Snitterfield that the Black Shales rested upon 

 an eroded surface of the Tea-green Marls ; ^ but while this may have 

 been the case, doubt has been expressed,* and the observation had 

 better not be made use of. 



To the south of Stratford-on-Avon the White Lias first appears as 

 rubble on the fields half a mile or so to the south-east of Sweet 

 Knowle ; then in a pond-side and in shallow abandoned workings on 

 Wimpstone Field ; and next, below the Lower-Lias limestones at 

 Newbold Limeworks. The rock is of a pinkish-grey colour, often 

 ' flinty ', has corrugated and waterworn surfaces, and is often pierced 

 by annelid-borings. Eerruginous matter, now oxidized brown, often 

 occurs in the borings and fissures in the stone. Fossils are not 

 numerous in this neighbourhood. An indeterminable species of 

 Isoci/prina is the most abundant form, and radioles of Psetidodiadema 

 and valves of Ostracoda occur sparingly. 



White Lias has also been worked at Armscote, on Meer Hill, and 

 extensively at lied Hill and Oakham (to the north of Ettington 

 Station), and is now quarried close to the station. 



On the western side of the Dene Valley, that is, between lied Hill 

 and Ettington Station, the White Lias occurs over a considerable 

 area originating noticeably flat ground. The White Lias thence 

 spreads round across the brook and railway, and pursues a noi'th- 

 easterly course to Lighthorne, having been in the past extensively 

 quarried near the barn north of Stamford Hall, at Foss Farm, on 

 Friz Hill, Moreton Hill, near Newbold Barn and Lighthorne itself, 

 and is at present worked on the north side of Compton Verney Park 

 and at Shadwell Barn, tlie latter the best section in the district. 



In all these sections the White Lias is very similar in appearance, 

 much resembling the Somerset White Lias. In places it is rich in 

 specimens of Dimyodon ijitusstriatus and Pseudomonotis fallax, while 

 ostracods and broken radioles of Pseudodiadeina are not uncommon. 

 The beds are between 6 and 10 feet thick, and most of the component 

 layers are bored by annelids and oft-times have well-waterworn 

 surfaces encrusted with the characteristic Dimyodon, facts denoting 

 slow formation. 



In a quarrj- near Compton Park tough black clay, familiar in 

 sections further north, occurs immediately above the White Lias. 



J Q.J.G.S., vol. xvi, pp. 394-5, 1860. 



" Pal. Soc, Monogr. Lias Amm. Brit. Isles, pt. i, pp. 19-21, 1878; see also 

 Phillips, Geologi/ of Oxford, j)p. 111-12. 



^ Q..J.G.S., vol. xxxiv, pp. 181-2, 1878. Strickland discovered the Bone-Bed 

 in situ cat Temple Grafton (Brodie, Fossil Insects, p. 73). 



■* Ibid., vol. xlii, pp. 273-4, 1886. * Discussion, ibid., pp. 274-5. 



