164 Notices of Memoirs — Submerged Forest at Blackpool. 



manni (Meek), Macrocheilus, Pleurotomaria, and two species of 

 Orthoceras. 



I had, in 1860, referred this rook to tte Devonian, on the evidence 

 of some of these same fossils (and the absence of any Silurian or 

 Carb. types), brought in, by Col. Simpson's Exploring Expedition, 

 from another locality a little farther north, though at that time this 

 rock was not known to be a silver-bearing formation. 



In addition to several of the above-mentioned fossils, I had from 

 this rock, in 1860, fragments of PJiacojps, Homalonotus, and of 

 another fossil, I thought might be a Calymene, but I do not think 

 now that it could have belonged to that genus. 



It is highly probable that the silver- veins of this region come up 

 from the Silurian, but no lower rocks than the Devonian have yet 

 been found just there. 



At other localities, farther east in Nevada, Mr. King found Atrypa 

 reticularis, a Spirifer, and a Dalmanites, evidently Devonian types, 

 and apparently from about the horizon of the Corniferous or 

 Onondaga limestone of the N. Y. series. 



From other localities he has OpTiilita compkmata, Vanuxem, and 

 two species of those many-whorled depressed shells, often referred 

 to Etiomphalus, from a low position in the Silurian ; also Primordial 

 Trilobites. In West Humboldt range of mountains he obtained a 

 fine collection from the Upper Trias, that afforded some of the same 

 types figured in the California Eeport. These are as clearly of the 

 age of the St. Cassian, as if the words " St. Cassian " were printed 

 in Eoman letters on every specimen. He also has Cretaceous and 

 Tertiary Fossils. All the Tertiary yet known from this great 

 internal region of tlie Continent, is of fresh or brackish-water origin. 

 The Tertiary rests conformably on the Cretaceous, and the passage 

 from one to the other seems to have been coincident with the change 

 from marine to brackish-water deposits, which wore afterwards suc- 

 oeeded by fresh-water formations." 



" The information given herein was Mndly permitted to be sent by Mr. Clarence 

 King, Director of the Government Geological Survey along the line of the Pacific 

 Eailroad."— F. B. Meek. 



ztsTOTiOES OIF nvcEnvnoii^s. 



I, — On the Submerged Forest at Blackpool, near Dartmouth, 

 South Devon. By W. Pengelly, F.E.S., F.G.S.^ 



IN a paper on the Submerged Forests of Torbay,^ which I had 

 the pleasure of reading to this Association, during the meeting 

 at Tiverton, in 1865, I recorded the facts that a Submerged Forest 

 existed at Blackpool, about two and a half miles south-west of 

 Dartmouth ; that it was almost always entirely concealed by the 

 sand thrown up by the waves ; that it had been described to me by 



^ Transactions of the Devonshire Association for the Advancement of Science, 

 Literature, and Art. 1869. » Ibid. vol. i. pp. 30-42. 



