96 Mr. Tate on the Geology and Archceology of Beadnell. 



65. Epeira INCLTNATA. Very common in woods on hazels, 

 &c. ; also on furze, &c. 



66. DiADEMA. Common. 



67. Tetragnatha Extensa. On rushes, at Moss Maw, 

 also near Swinton hill. May and September. 



68. Dysdera Hombergii. In crevices of sand and soil 

 at the roots of Ammophila. Bents and Ewelairs, April and 

 October. 



69. Segestria senoculata. Beneath stones on walls, and 

 in fissures of rocks at the co*ast, December and September. 



70. OoNOPS pulcher. This small scarlet spider is not 

 rare among sand at Ewelairs. In Lancashire and Wales it 

 occupies the crevices of walls and rocks, or hides under tree- 

 lichens in woods, September and October. 



The Geology and Archaeology of Beadnell^ in the County of 

 Northumberland^ with a description of some Annelids of 

 the Carboniferous Formation. By George Tate, F.G-.S, 



When the Berwickshire Naturalists' Club met at Beadnell 

 in May 1858, a party examined the rocks on the neighbour- 

 ing coast, and the ruins of an ecclesiastical edifice on Ebbs 

 Nook ; and as both the ancient chapel, and yet more ancient 

 rocks present many points of interest to the Antiquarian and 

 the Geologist, I now lay some account of them before the 

 Club. 



GEOLOGY. 



A section along the coast from Ebbs Nook to Annstead 

 Bay, of nearly one and a half miles in length, exhibits a fine 

 series of rocks belonging to the Mountain Limestone Forma- 

 tion. Thick sandstones and limestones, shales with ironstone, 

 and coal seams are intercalated with each other ; and these 

 strata are traversed by a lead vein and a basaltic dike. As 

 we wander along the shore, we meet with evidences of sea 

 deposits in the limestones and calcareous shales, wherein are 

 embedded many corals and mollusks; the sandstones and 

 other shales, and the coal afford relics of the vegetation of the 

 Carboniferous Era; some slaty sandstones give distinct indi- 

 cations of shallow seas and ancient coast lines, whereon the 

 waves broke gently and over which worms crawled ; and the 

 basaltic dike tells of the play of internal forces, rending 

 asunder the vast mass of stratified rocks, and pouring molten 

 lava into the fissures. 



Stratified Rocks. — The general dip of the strata is south- 

 east about 15°, and as we proceed northward we pass over 



