94 
REPORT—1854. 
'T aCC0Ullt * that tl,e y wcrc ^moi from the waste of rock. 
neiehbourinl li!« f rf, T’ 0 ’' , and lower New Red Sandstones of these or of 
the^Caml)n'5n * V ^ n | ll ^e^°g |cu l structure they can generally be identified with 
Sek?£ Zt f r° { n the f on g>».vnds, and the Lower Silurian slate, and igneous 
shire’ Tl’,p V °'° r ', e t ^‘ e ® e between the Stiper stones and Chirburyin Montgomery* 
to the iX ^Tn, U .' 3 Wde,u ‘ d ^eof fine red marl. p?obably atmlogoi. 
insist iuiLSSL dc ^‘ T,ig deluded fragments and block. 
fel8 ‘ 0ne > ,or R h - vr - v ’ fck P atJ ‘ !a ash - ribboned .late, 
black •»lntfi nnt i SheUe, quartz rock, purple and green sandstone nnd *bit*, 
the sto. el ’ a J J ““dstoneannd limestones containing Silurian fossils. Very few of 
ZTL .: rou,,ded * Many of them are angular, most of them are sub- 
THpv a™ tVn ?i '° s f, surfaces cmnmon in fragments found in mornin *. 
un to 4 r i „. L i! Ue ,'" ly '^b-poli^ljed and occasionally scratched. They arc of nil siin 
have° traveller? To If ««•• fio «‘ thcLongmynd dist.icr, in place, tin y 
now in their »v- ens J *'% tttllw, and there is evidence from the outcrop* that rrm 
miles in di-m. j* gmi; ' i, . ar y f ,atc ' they occupy an area of from twenty-fire to thirty-five 
Ilnd tliev fnrn T " *! L t ^ ero *# perhaps much more concealed beneath the bidI ke. 
and there ;« T ^ 3e8C ^ e8 would probably have been rounded by the ware*, 
marine Z3. mT 57 souncl P™* they were scattered abroad by great 
by tidal cnn-,.i° C a S " . J u ? d to ore in diameter are not moved along wa bottom* 
in straight . con * ,derm £ their size, angularity, polish, occnsion.il scratching* 
author fipHnw' !r r 8 P ara ^ t 'I lines, and nlso the matrix that enclose, them, the 
rose in tl»p „„*■ ! Q i , lc - v „ w f r<: deposited from icebergs, derived from glacier, that 
Th e Lun.rmv*i(U n anf ° 1 !“ Lo,| gtoyJldH nnd the overlying Lower .Silurian stratn. 
tweon tho rnlnni U - re UU T V n -P feet above the sen, hut on their eastern side be- 
downthrow on tlm"* * ^'“ breccia*, there is in the great ( 'Lurch Strctton fault * 
Haps ilStheVi iZ 1 , 0, ab r t 1 ? 00 fkt ‘ Thfs » a ‘ “»l )art - fln '! 'T 
Of the Lunemvn.l i-. 'i ‘ at< i tha “ t,le New Red Sandstone, 8t» that the relative level* 
the latter wore deposited * 10 breccias were not the same as nt present when 
first, in a DarfnfTl!!! 1 ! act ’ on occur in the Hunter sandstone on two horizon*; 
part ol tho pebble bed9 neftr BeW(I j (No> 3 , and , u , cr at t | ie base of thr 
uictstoiies (No. 5) between Stournort and the Ahberleys. 
tho paucity of or™.' l / , ^ ear tbat . t * ie phenomena above described arc connected with 
the Hunter sandstone 0 remains a i ar g° part of our Permian strata and in part o 
points "bearing ^ f** °f tJle Ancient Glaciers of North Wales, and other 
Ham say, F.IiS 1 ** (jlaciatiou °f the Country. By Professor A- C- 
ITIlG 
Of North " Vale! Sflhf ?'? o paper was *° l ,rove that the ice of the g rea,c . r 
Francon. &c. IZ r !" l3 ?° ** thick; that the valleys of Llanbens. N* a ' 
inferred by observation.^ Purely filled with ice at least of that thickness. I hi* 
of the Swiss glacier*l°gous to those by which it has been shown that th* 
observations were m 1 H 0 S .r”. , i ni » r ^’ .° f mut 'h greater thickness than at present. • 
a»d acratchincs wrr. "' 1 ]' .(^dio s sympiesometer. The directions of the gre 
bottom of the valley. " m PP c d by compass, and tlicir heights above ■ 
Jfi* journal of the (ienln^iJlV o^-' ^'. e ail( lior has previously shown in fl .P a j^ or! i 5 
the Journal of the tieidoM "V ^ ,t> ai,t hor has previously shown in a P a P5^', 
^’ales since the ground L? Soc !°^’« that there were two sets of glaciers in * ' 
acale, and it was probnbK n »T d P re * ont F ( ' ,lc, ' al ro1 "’- Thc ,5,st TVnlS 
perhaps nt the very thi.o »{,! i° l,<,cl1 ,llaf tll(1 icc attained its greatest thteka 
grander scale **?*££? Jf ?!»*• «nd Himalayan glaciers were on a mwj 
the groovings, passed straight M tlm P criod . Wales, the glacier** proved vy 
b P strayht acros , the tributary valleys of the Pass ofLlanber.. W 
