186 
Reports and Proceedings — 
hitherto found in Nova Scotia. The author compared the structure of this stem 
witli that of other Sigillarians, and remarked that it seemed to come witbin 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. spinulosa, Renault, 
being higher in Organization, and leading towards the still more elevated tvpe de- 
scribed by him in 1870. He further discussed the supposed alliance of tliese trees 
witli Gymnosperms, and the probability of the fruits known as Trigonocarpa being 
those of Sigillaria , and expressed the opinion that the known facts tend to show that 
there may be included in the genus Sigillaria, as originally foundcd, species widely 
differing in Organization, and of both Gymnospermous and Acrogenous rank. 
IV. — March 7, 1877. — Prof. P. Martin Duncan, M.B., F.R.S., President, in the 
Chair. — The following Communications were read: — 
1. “Oil the Beds between the Gault and Upper Chalk, near Folkestone.’’ By F. 
G. Hilton l’rice, Esq., F.G.S. 
The author described the characters presented by the beds between the Gault and 
Upper Chalk near Folkestone, indicated the fossils contuined in them and their ränge 
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 ä 
Ter. gracilis , about 
75 feet. 
Craie noduleuse ä 
Inoc. labiatus, 75 
feet. 
>8 L 
Author’s divisions 
and znnes. 
Upper Chalk. 
f IX. Zone of Echi- 
noconus subrotun- 
dus and Terebratu- 
lina gracilis , 118 ft. 
VIII. Zone of Car- 
diaster pygmceus, 
32 feet. 
F. Drew in 
'Whitaker’s 
Survey Memoir. 
D’Orbigny. 
1 
j Concretionary 
| ? nodular chalk, 
) 73 feet. 
Turonian, 
150 feet. 
Bel. plenus zone 
proper. 
4 f 
Zone a Bel. I 
plenus (Craie < 
compacte). (. 
hl 
Craie argileuse 
avecbancsdurs 
a Anim. Rho- 
thomagensis. 
Zone ä Amm. 
varians. 
ü 
p-. 
Q 
i-t 
o 
L. 
Craie marneuse a l 
Flocoscyphia mcc- I 'S 
andrina. ( «S 
Marne sableuse = r 'S 
zone of Beeten as- \ 
per, or W arminster j 
beds. \ 
( VII. Zone of Bel- 'j 
emnites plenus, 4 ft. 
VI. Zone of Ho- 
laster subglobosus, 
148 feet. 
V. 2ft. 9in. 
IV. Zone of Amm. 
Rhothomagensis, 
11 ft. 
’HII. 8£ feet. 
II. Zone of 10 ft. 
1. Flocoscyphia mcc- 
andrina. 14 feet. 
Upper Gault. 
Soft bed of 6 ft. 
with Belenmites, 
Whitaker, p. 33. 
White chalk 
without flints, 
138 feet. 
Chalk marl, 
tliickness not 
given ; say about 
30 feet. 
Cenomanian, 
197 feet. 
2. “ On the Vertebral Column and Pelvic Bones of Pliosaurus Evansi (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 ol Geo- 
graphy in King’s College, London. 
