ESTHERIA STRIATA. 27 



Feet. Inches. 



4. Coal, not exceeding 7 



5. Fire-clay, with Stigmarian rootlets 5 



6. Reddish sandstone ; many of the beds thin and slaty 30 



7. Shales, with a little poor ironstone 4 o 



8. Coal (irregular) 10 



9 . Yellow san dstone 4 q 



10. Drab, slaty sandstone, passing into argillaceo-arenaceous shale 10 



11. Arenaceous shale, slightly calcareous 3 y 



" These beds dip east by south ; all of them belong to the Mountain-limestone group, 

 though they are not far from its base. 



" No. 1. This sandstone is overlain by many beds of limestone, and associated with sand- 

 stones, shales, and coals, which form the mass of the Mountain-limestone group, extending 

 into Northumberland. 



" No. 2. The Estherian shale. This contains another Entomostracan form. 1 There 

 are also a number of broken fragments of plants ; the most numerous being reed-like 

 stems, longitudinally ribbed, but without joints, Coniferites verticillatus (Tate 2 ), and 

 Sphenopteris Johnstoniana (Tate 3 ). Attached to the plant-stems are species of Spirorbis. 

 Scales of Ganoid Eishes are abundant ; and I have determined teeth and scales oiHolopty- 

 cJiius Hibberti in this shale. In the lower part of the deposit I found Chonetes sordida 

 and Nucula gibbosa. This bed, taken in connection with that below it, shows changes of 

 conditions from marine to estuarine, and probably to fresh water. 



" No. 3. This limestone is very fossiliferous, containing — 



Strophomena analoga. 

 Productus giganteus. 

 Productus semireticulatus. 

 Lithodendi-on junceum. 

 Lithodendron affine. 

 Lithostrotion Portlocki. 



Stenopora tumida. 

 Favosites parasitica. 

 Astrccopora cyclostoma. 

 Syringopora geniculata. 

 Aulopora gigas* 



"No. 10. In the arenaceous shales I have found Lingula squamiformis, and an elon- 

 gated form allied to, but which may be different from, Lingula mytiloides. 



" No. 11. Here occurs Biscina nitida. In several of the beds of Nos. 10 and 11 are 

 many Annelid-borings. 



" In arenaceous shales a few yards below the above section, I have found Sanguinolites 

 arcuata, S. carbonaria, Aviculo-peclen Pera, and Spirifer laminosus.'" [G. Tate, February 

 9th, 1861.] 



1 See Appendix. 3 Ibid., p. 306. 



3 ' Fossil Flora of the Eastern Border,' p. 309. 4 ' Transact. Berwickshire Nat. Club,' vol. iv, p. 152 — 154. 



