Mr. R. C. Taylor on the Geology of East Norfolk. 277 



vexi) torquati et quasi pinnatisecti, e spinis geminatis 

 patulis rufo-fuscis marginalibus brevibus insuper pe- 

 dunculos productos carnosos crassos trilineares, oblique 

 spiraliter tortos et squarrose sexfarios insidentibus ; et 

 quasi in apice ramorum in totidem angulis. 



Folia ordinaria affiniuin, in ramorum apicibus babet 

 minutissima subrotundo-cordata, fere invisibilia citius 

 marcescentia, et caduca. 



Obs. Plantam banc mirabilem in propria subsec- 

 tione locarem cum E. prommbeJite Meerburg (quae 

 est E. M/zczna/flDeCandolle, ut supra :) necnon E. sco~ 

 lopendra Nob. in Synops. PL Succ. p. 126 ; quaj ultima 

 nunquam cum radice tuberosa, neque ramis nunierosis 

 simplicibus ambientibus vidi : sed cum ramis solitariis, 

 ramuliferis, et duplo majoribus, magisque dilatatim 

 oblique pallideque venosis quam in E. proambente. 



LVII. On the Geology of East Norfolk; mth Remarks upon 

 the Hypothesis of Mr. Robberds, respecting the former Level 

 of the Gei-man Ocean. By R. C. Taylor, Esq. F.G.S. 

 [With Engravings.] 

 To the Editors of the Philosophical Magazine and Annals of 

 Gentlemen, Philosophy. 



THE district which is the subject of examination in Mr. 

 Robberds's " Geological and Historical Observations on 

 the Eastern Vallies of Norfolk," noticed in your last Number, 

 haviii'T particularly occupied my attention, a perusal ot the 

 work has induced me to send you some remarks on this in- 

 quiry, and on the validity of the conclusions wliich the in- 

 genious author has adopted. 



Mr. Robberds shows that these valleys, which are now for 

 the most part solid and productive land, yielding rich pas- 

 turage to many thousand head of cattle, were " at no very 

 distimt period, arms of the sea, navigated by our forefathers." 



The proofs of this change are arranged under two heads: 

 Physical and Historical. 



Under the first class are enumerated the connection between 

 the valleys and the German Ocean ; the resemblance which 

 their outline bears to the forms generally exhibited by ajstu- 

 aries and inlets of the sea ; anil the remains of marnic shells 

 and exuviaj discoverable along their margins, at the elevation 

 <jf 40 feet. These beds of shells arc stated to have the fol- 

 lowing striking and peculiar characters. 



'' Isl. None of llieni, except a few casual specimens, belong to 



aiiv 



