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Reports and Proceedings — 



hitherto found in Nova Scotia. The author compared the structure of this stem 

 with that of other Sigillarians, and remarked that it seemed to come within the limits 

 of the genus Sigillaria, but to belong to a low type of that genus approaching Lepi- 

 dodendron in structure; those of the type of S. elegans, Br., and S. sjnnulosa, Renault, 

 being higher in organization, and leading towards the still more elevated type de- 

 scribed by him in 1870. He further discussed the supposed alliance of these trees 

 with Gymnosperms, and the probability of the fruits known as Irigonocarpa being 

 those of Sigillaria, and expressed the opinion that the known facts tend to show that 

 tliere may be included in the genus Sigillaria, as originally founded, species widely 

 differing in organization, and of both Gymnospermous and Acrogenous rank. 



ly.— March 7, 1877.— Prof. P. Martin Duncan, M.B., F.R.S., President, in the 

 Chair. — The following communications Avere read : — 



1. "On the Beds between the Gault and Upper Chalk, near Folkestone." By F. 

 G. Hilton Price, Esq., F.G.S. 



The author described the characters presented by the beds between the Gault and 

 Upper Chalk near Folkestone, indicated the fossils contained in them and their range 

 in this division of the Cretaceous series, and discussed the classification of the deposits, 

 and their equivalence with those recognized by other writers. His conclusions are 

 shown in the following tabular arrangement : — 



C. Barrois. 



Craie marneuse a 

 I'er. gracilis, about 

 75 feet. 



Craie noduleuse a 

 Itioc. labiatus, 75 

 feet. 



^■S 



f! 00 ^ 



Author's divisions 

 and zones. 



Upper Chalk. 



fix. Zone of Echi- 



noconus subrotun- 

 dus and Terebratu- 

 lina gracilis, 118 ft. 



^ L 



VIII. Zone of Car- 

 diaster pygmceus, 

 32 feet. 



F. Drew in 



Whitaker's 

 Survey Memoir. 



j Conci'etionary 

 \ ? nodular chalk, 

 ) 73 feet. 



D'Orbigny. 



Turonian, 

 150 feet. 



Bel. plenus zone 

 proper. 



Zone a Bel. 



plenus (Craie 

 compacte). 



Craie argileuse / 

 avec bancs durs \ 

 a A.inm. Rho- \ 

 thomagensis. \ 



Zone a Amni. 

 varians. 



V 



Craie marneuse a 

 Plocoscyphia mce- 

 andrina. 



Marne sableuse = 

 zone of Fecten as- 

 per, or Warminster 

 beds. 



{ VII. Zone of Bel- 

 emnites plenus, 4 ft. 



VI. Zone 



luster s\ 

 148 feet. 



of Eo- 



)■ 



Soft bed of 6 ft. 

 with Belemnites, 

 Whitaker, p. 33. 



"White chalk 

 without flints, 

 138 feet. 



V. 2ft. 9in. , 



IV. Zone of Amm. ' 

 Rhothomagensis, 

 lift. 

 '^III. 8i feet. 



II. Zone of 10 ft. 

 1. Plocoscyphia nice- 

 andrina. 14 feet. 



Chalk marl, 



thickness not 

 given ; say about 

 30 feet. 



Cenomanian, 

 197 feet. 



Upper Gault. 



2. " On the Vertebral Column and Pelvic Bones of Pliosaurus JEmnsi (Seeley), from 

 the Oxford Clay of St. Neot's, in the Woodwardian Museum of the University of 

 Cambridge." By Harry Govier Seeley, Esq., F.L.S., F.G.S., Professor of Geo- 

 graphy in King's CoUege, London. 



