450 I>r. W/icclfon Himi S^ John T. Shbbs— 



still lu'* soon. I\Iortou estimnteil tlio thickness of llieso beds at 

 nbout oOO loot. SovonU quarries still exist close to the tramway, 

 showiiiiv sauilstones of various shades of colour. The highest hed, 

 oalUvl l>v I\Iorton the Sweeney ]\Iountain Saiulstone, is a very white 

 ami soft rock, in which are traces of fossils, fragments of Brachiopoila, 

 aiul an obscure coral. Below this bed are other sandstones, pink 

 and red in colour, containing marine fossils — 



A<.-!i>uyn\is yi<7<i«<«fM»N, Sow. {Fui<^ Morton.) 



J'^iViiiu'tus sp. 



ISi-hitophori,} rrsupitiatti (Mart.). 



Still lower comes a hard white sandstone estimated at 70 feet, 

 resting on loO foot of soft rod sandstone, which is fossiliferous in 

 places. 



The following section is to bo soon at the Tretlach Wood 

 Quarries : — 



."i. robblv grit. 1 foot. 



4. Sott ml s:uvdstoui\ 6-8 fet't. 



(liiii. t\olUnv srroviud, gn»ss<Hl ovor. 

 ;?. Thuv boils of limostouo, 'JO toot. 

 •J. Limostono and shsilo, 10 lo t\vt ^tho limostonos vnrviiis; from C in. to 



ltt.tl\iok>. 

 1. P.irk liniostiiuos. woU IhhIiUhI. 



Thin limestones {'2) contain — 



Ciimpofthj/llMin uiY. AfutYhisotii, E. v^ II. 

 Cj/iithof>fi(/lliiiH of. ri-ijiiim, IMuIl. 

 Pivdut-fiis (iiiiitnte'M (Mart.). 



Thin bods of limestone (o) contain — 



Alvifohtfs nrfitosii (Flom.). Z.jMN(rnm (Floin.). 



Ciimi^iophf/lliim aft". Mitrchmm, E. & H. loHsihiUio ^fior{fornm (Flem.). 



jnibiiHophj/nuiH ^^. TnHtuctus gijfaMtfM (Msut.). 

 Zithtk^hvtioH «f«yM/rt»r (Phill.). 



The same series with a similar fauna occur at Dolgooh, a little 

 move than a mile SS.W. of the last section. 



(xxxv) The sandstones of the Cofn-y-Fedw Series at Selattyu, 

 Oswestry Kaoocourse, and Sweeney ^lountain are fossiliferous. 

 and the following species were obtained, many of which have been 

 mentioned by Davios and Morton : — 



JfAywcAoMf//*! plftmHloH i^Phill.). JJ. jtM/<'<i/(» (Tlull.). 



OrlhotfUK n-mistriti (T'lnll.). iVni //<■/()</<)« Ofinitsi, De Kon. 



TiViUx'tm Corn, DH^rb. T. .vr»«tAw/«irM» (?). 



J\ eostiitm, J. Sow. JV«Mii,//<i/»«'//»7o»"»MM, Mart, 



T. fiHHttittHs (Mart.). Jrj-o/o-vfAijnu/M* <rqtuh>tfntlis (M'Coy). 



Schkophoriii »Y»M^)»Mci6i (Mart.). IVIiiHomorpha cimifijonnis, Ulud. 



Spirijh' sp. Tl^mvtomnria sp. 



Sdmomiia Oohiftts^fi, Po Kon. 



(b) Pi'mlhaide Series. 



The best exposure showing the conformable relation of the 

 Pendleside Series to the underlying cherts is seen at the Grange 

 Quarry, llolloway i^lat. oo"^" U>' lio" N.. long, o"^ H' 2o ' W.), about 

 a mile noith oi' Holywell. At the entrance to this quarry the black 

 shales and ihin platy black lin\estoi\es are depi)sited directly on the 



