80 
REPORT—1854. 
feet of the summit; the direction in both instances being west 30° north, or the same 
as that of the mountain ridge. About 800 feet below the summit u block of granite 
was found, and other foreign blocks were noticed in several places. These fact* 
show that the whole mass ot this lofty hill has been involved in the general glacial 
action. 1 he detritus of the neighbouring valleys is of the kind produced by sub-aerial 
glaciers; but at the Pass called White Bridge, the surr.mit-lcvc! cast of Schichnlliwi, 
there is a deep bed of true boillder clay with many worn and striated blocks; it lie* 
out ot the way of valley gluciers, und has escaped removal by their agency. 
Mr. Charlf.swokth exhibited and described severul new vertebrate fossils:—!. 
Vertebra, supposed to be cetacean, from upper green sand of Cambridge, in the 
cabinets of the ttev. T. Image und Mr. Heed, of York. Their structure was extremely 
dense, and the end? marked with radiating grooves as in mammalian vertebra-, 
which have lost their epiphyses. The bodies of theae vertebra were depressed, 
giving an elliptical section, and on the dorsal surface was u ridge instead of the usual 
spinal canal. The vascular foramina were large. 2. Part of tho lower jaw of a new 
mammal (Stereognathus oulUicus, Ch.) from the Stones field slate, In the cabinet of 
the Rev. J. Dennis, of Bury. This was the fifth quadruped of the Stonetlirld 
and must have bemi twice the size of any of the others. The specimen was part ot 
the centre ot one division of the lower jaw ; its curvature was very slight, and the 
concavity below. The section, where it was broken across, war rectangular, and a* 
wide as deep. The surface presented no trace of sutures or vascular lines. 'Ihrre 
teeth remained, uceupyilig half the length of the fragment, and one of these bad 111 
similar cusps arranged in two rows. 3. The skull of n new mammal, named PkUr 
c/uerops Ricliarftimu (Cb.) from the London play of Herne Bay; about the n» of 
^yrocotheriurn, but Quito distinct, having very prominent zygomatic process 
f ‘ ° ' '1 niolni ' ‘Seth being furnished with one large tubercle occupying 
two- hirds ° f the surface, and several small complicated tubercles inside. 4. I tit*- 
ZZI JX : h ‘>- a now specie., in the Museum of the Yorkshire Philosophy 
between the sockets Wy cIo ‘ e ^ crowded, leaving only a slender bony partition 
On some of the more Recent Changes in the Area of the 
Rg the Rev. J. (}. Cummino, M.A., F.O.S, 
v’J'xe Rev. j. COMWlfQ M.A., I.C.s. 
M^. 11 in *ha relative level of land and arm, indicated in the We* 
neJind rT ,7 exleilde «l ‘o the surrounding coasts of Britain and Ireland. J " 
fslflnrl i le boul f. cr "'as marked by a cold climate and the subsidence of lb- 
3oTalion d nf , . , r- 0,1Ud, ! ,g C0 , :lsts ,0 the ‘‘Stent Of at least 1000 feet; ami, during d*** 
) 5 feet ahnvp h Countr i'» ,berc «n interval, when the hind was stationary " l 0 . * 
d^v form nl P T U - levcl - T ‘te Nca 'bed of the great drift gravel was then 
rom’idhm comm; r" 81 .'’ 0 , trecIes * P Iai », connecting the Isle of Man with the 
the second elonbn', nn 'l 1,1 that time United to the Continent. Thti 
became an ,n *" FUt Irish stag (Cerrus 
“e found inWr “ ° f lhe ,b,e of ^ "Ulx other animals whose 
plain. The ni ul I .' c . sbwate, ‘ marls occupying basin-shaped depressions in the*_ 
f a ti 0 „’ an ,i ':'«nsand the plains i hem selves were afterwards covered with g* 
dmitm the . a LV 0ccM pled with beds of pent, containing forest trees; b j 
drift gravel m t‘l * l ' a " as quietly eating hack its Way into the lcrr f 
KH? ldC0fMnn became iL.lntod and the further 
Sml sometifi T led ' CM » of drift gravel occur on all the coasts.® 
The form of the ,P^ ll, 8 the hard rocks, at others retiring a little distance ‘J* . 
south of the Isle nf\r’ ll> ' i aM<1 ,be Renter waste of the pleistocene deposits 
and its higher levrf ‘i^rovlTl the aelion uf lI,e was c 1 11 e fvoin ,J,’ 6 high c--t 
modern tides, alone tl,J who J> ‘S® 'rater-worn caves, above the g j{ 
indicated by the mibhier^d p s " utlicni western shores. A still kterc g 
grown after the formation 01 ‘ many parts of the coast, winch a PP ea • „ by 
which the bed rf,h? TS°[ gruvel tei r e ' a i r« 5 r7 fSS-S 
took place during tLhistoJfe i" CC more ,aid <Ir k ' Vh , cll,er l . he J aS b 
ok period i* a question yet to be determined. 
