Reports and Proceedings. 265 • 



been enabled to examine a considerable collection of specimens of 

 the Acanthodean fisbes of the North Staffordshire Coal-field. The 

 specimens were all imperfect, the anterior parts of the fish being 

 rarely preserved, and even when present being in a very mutilated 

 condition; but Sir Philip Egerton had been able to determine the 

 distinctness of at least one species, which he now described as 

 Acantliodes Warcli. The species was far less bulky and more elon- 

 gated than A. Bronni from the Saarbriick Coal-field ; but it was not 

 so slender as A. gracilis from the Permian beds of Klein Neudorf. 



2, " A sketch of the Gravels and Drift of the Fenland." By Harry 

 Seeley, Esq., F.G.S. 



■ By the Eenland was understood the flat country west of the 

 Chalk Hills of Norfolk, from Hunstanton to Cambridge, thence to 

 Bedford, and northwards to Peterborough. Three kinds of drift 

 were described as occurring in this regi&n, namely Boulder-clay 

 covering the high land, a coarse gravel which caps the hills, and the 

 fine gravel of the plains. Mr. Seeley gave first a sketch of their 

 distribution over the area under consideration, and then described 

 some of their most important exposures, especially the sections at 

 March, Barnwell, and Hunstanton. He also gave lists of the marine 

 shells found at March, occurring between Boulder-clays, and those 

 found at Hunstanton, which are of much later date ; also of the 

 bones and land and fresh-water shells found at Barnwell, including 

 one bone described as having been cut by man previous to deposition 

 in the gravel. 



Comparing the drift of the Fenland with that of the Eastern 

 counties, Mr. Seeley inferred that the brown clay of the latter 

 district corresponds with the brown Boulder-clay, which is the oldest 

 drift-deposit in the former; and that the hill-gravel, the blue Boulder- 

 clay, and perhaps the shell-bed of March, correspond to the Con- 

 torted Drift. 



3. "Additional Observations on the Geology of the Lake-coimtry." 

 By Prof. Pt. Harlcness, F.E.S., E.G.S., and H. Nicholson, Esq. With 

 a Note on the Trilobites. By J. W. Salter, Esq., F.G.S. 



The authors having first communicated the following additions to 

 the fauna of the Skiddaw slates, namely, from the lower strata, 

 Phacops Nicholsoni, n. sp., j^glina binodosa, and Lingula brevis ; and 

 from the upper beds Diplograpsiis teretiiiscidus and Agnostus morea ; 

 they stated that fossiliferous rocks had been discovered by them 

 among the " ash-beds " of the Lake-country on the same horizon as 

 those associated with the purely igneous rocks of the eastern parts 

 of Cumberland and Westmoreland, which underlie the Coniston 

 Limestone, and are of Caradoc age. This discovery has thus placed 

 the green rocks of the Lake-country in the same position. 



The Caradoc formation of the Lake-country was stated to embrace 

 three divisions, namely, the Coniston Flags and Grits, the Coniston 

 Limestone, and the Igneous Eocks and Ash-beds ; and the following 

 organic remains were enumerated as having been obtained from the 

 Coniston Flags and Grits, the uppermost division of the formation : — 

 Graptolithus Ludensis, Diplograpsus pristis, Phacops obtusicordatus, 



