294 
THE GEOLOGIST. 
points out that these trap-rocks were erupted beneath the waters of a lake or 
lakes, of no great depth, in the Nagjjur district ; wliilst towards the soxith-east, 
about the mouths of the Godavery, there were estuarine and luarine deposits 
being formed. 
The author formerly thought that the sandstone at Nagpm-, underlying the 
lower traj) and overlying the gneiss, was of Jurassic age, and once continuous with 
tha,t of Korhadi, Mangali, &c. ; but he now believes that it belongs to the Tertiary 
series. It contains abundance of silicified wood, and a few Pahcdince. This ter- 
tiary sandstone is metamori^liosed into gneiss by the intrasion, apparently, of some 
deep-seated plutonic rock, evidenced by veins of pegmatite. 
Some minerals from the trap, gneiss, &c. were then enumerated, especially the 
"Hunterite" and " Hislopite" lately discovered by Prof. Haughton. 
The Fossils were next alluded to : namely, Fish-remains— some like the Sphy- 
ranodus of the London Clay ; also Reptilian remains, and bones of Pachyderms. 
The Shells, both freshwater (from the neighbourhood of Nagpm-) and marine (from 
Rajamandri, near tlie mouth of the Godavery), were described by the author in 
detaU. Cyprides are numerous ; some have been described by Mr. Sowerby, and 
some new forms will be described by Mr. Jones. Plant-i-emains are abundant, but 
have not been yet described. Many remams of Insects occur ; and, as far as Mr. 
Andrew Mm-ray can form an opinion on them, they differ from recent species. 
The author, after comparing the fossil shells of Nagpur with those of the Num- 
miihtic fauna described by Viscount D'Archiac, and with the recent fauna of India, 
ofi'ered the conclusion that they are probably of Lower Eocene date. The nearest 
European analogue is found in the Physa-bed (Physa gigantea) at ROly, in France. 
These Tertiary deposits, with their pachydermatous remains, are decidedly (in 
the' author's opinion) older than those of the Sewalik Hills, so well known from 
Cautley and Falconer's researches. There are yet newer deposits, ivith huge fossil 
bones (probably of Upper PUocene age), on the banks of the Nerbudda and 
elsewhere. 
Lastly, the author observed that the "diamond-sandstone" of India belongs 
to these Eocene deposits ; and, since its formation, plutonic rocks have risen to 
the surface and rock-masses have been metamorphosed. 
Shells from the freshwater strata of Nagpur and neighbouring parts of Central 
India (all, but three, new species) — Melania quadrilineata, /. Sby. ; M. Hunteri ; 
Paludina normalis ; P. Deccanensis, /. Sby. ; P. Wapsharei ; P. acicularis ; P. 
pyramis ; P. subcylindraca ; P. Sankeyi ; P. Takliensis ; P. soluta ; P. conoidea ; 
P. Rawesi ; P. Virapai ; Valvata minima ; V. unicarinifera ; V. multicarinata ; 
V. decollata ; Succinea Nagpiu-ensis ; Limnsea oviformis ; L. subfusiforrais ; 
L. attenuata ; L. peracuminata ; L. Spina ; Physa Prinsepii, /. &hy., var. elon- 
gata, var. inflata ; Ph. Bradleyi ; Unio Malcolmsoni ; U. Himteri ; U. cardioides ; 
U. mammillatus ; U. imbricatus ; U. Carteri. 
Shells from the estuary strata near Rajamandri (all new species) — Pseudo- 
liva elegans ; Natica Stoddardi ; Cerithium multiforme ; C. subcylindraceum ; C. 
Leithi ; C. StoddarcU ; Vicarya fusiformis ; Turritellaprjelonga ; Hydrobia ElMoti ; 
Hemitoma? multiradiata ; Ostrea Pangadiensis ; Anomia Kateruensis ; A. modiola ; 
Pema meleagrinoides ; Modiola, sp. ; Corbis elliptica ; Corbicula ingens ; Cardita 
variabilis ; Cytherea orbicularis ; C. Wilsoni ; C. Wapsharei ; C. Rawesi ; C. Jer- 
doni ; C. elliptica ; C. Hunteri ; Tellina Woodwardi ; Psammobia J onesi ; Corbula 
Oldhami ; C. sulcifera. 
Fossil Insects from the Tertiary strata near Nagpur — Lomatus Hislopi, nov. ; 
and three other Buprcstidce (indefinable). Meristos Hunteri, nov. ; and seven 
other Cwculionidm (indefinable). 
[An extensive collection of fossils from Nagpiu-, including those collected by the 
late Dr. Malcolmson, were exhibited.] 
I 
