652 PROF. W. BOYD DAWKINS ON THE CARBONIFEROUS, [ Nov. 1902, 
Depth. Thickness. 
Feet inches. Feet inches. 
RBrockram: conglomerate, with pebbles of red 
crinoidal limestone and hematite...............06 1018 4 0 6 
Sandstone, with Brockram oJ.) eee ee, ee 1021 4 3 0 
Red calcareous Brockram and sandy marls, with 
crinoidal limestone-pebbles  .............0cceceeceee 1040 =10 19 6 
Lower CaRBONIFEROUS. 
YVOREDALE SERIES) Mere once 1281 0 240 2 
Red, purple, and grey micaceous sandstones, with 
subordinate layers of shale, marlstone, and earthy 
limestone and patches of hematite, and contain- 
ing Stigmaria, Lepidodendron, and other plants 1209 11 169 1 
Sandy purple limestone, with crinoids............... 1214 5 4 6 
Caleareous shale: . 5: is. ssccte pe eeeeenetos cs «ic <a <n tee UPAR = 1k Mei 
ed. BaudstOMer..., m-.qesectcn ee erence Saco! aa 1218 3 We es 
Harbhy limestone sins. .2; cascade enema en ciation el coe ae 1219 2 O: dat 
Grey and purple marlstonel =.-2yessen ss ..ce- 1225 8 6 6 
Grey diniestoneicscaest te. cs ont ae eke (2295 0 + 2 
Purple and grey crinoidal limestone ............... 1232 1 2 3 
Purple and grey marlstone, with carbonaceous 
AW ARAMIGML SE hate os Naar cates ects ne ARN ade o> Aes 12385 5 3-4 
Pirple and grey marlstone .....-<.cteades. 06-0240: 1242 11 hon yb 
Purple and grey crincidal limestone ....... seen ote t 0 8 
TIA YING SEONG ts cos cena acttaetne ta see ates ee eee 1245 11 2 + 
Purple and grey marlstone, sheared ................6 1246 0 0 ] 
Compact erey limestone s.ic. 5. fi ccicac.tcgsenscs sacar us 1255 0 9 0 
Harthy redilimiestone i a.c.vpesseente oo desdseriwetk ee ae 1260 0 5 0 
Earthy red sandy limestone .................0:00s00008 1262 0 2 0 
Purple and grey marlstone, with gypsum............ 1265 0 3 0 
Light purple calcareous sandstone ................+. 1270 0 9) 0 
Purple and grey marlstomes..e.cie.0,<2.00s sacar 1272 0 2 0 
Purple and grey marlstone, with Productus......... 1276 0 4 0 
Red eringidal [imestone:....aeee.4..-0s0ne sea eee 1277 0 if 0 
Breccia, red sandy calcareous, sheared, probably in 
fhe line Gf tall .. 07ers vals eee 128] 0 4 0 
The Triassic, Permian, and Yoredale Series are the same as in the 
preceding section. The last-named dip at an angle of 33° ata depth 
of 1057 feet from the surface, and at 1070, 1202, and 1243 feet at 
an angle of 30°. 
The Permian strata in both these sections are remarkable for their 
thinness, and for the absence of the massive lower sandstones of 
Peel. It must, however, be noted that precisely the same contrast 
is visible when the Permian rocks of Barrowmouth are compared 
with those of the Vale of Eden. 
VI. Borine No. 5, at Porn oF AYRE. 
The fifth boring, at the Point of Ayre, close to the lighthouse, 
3566 yards north-east of No. 4, adds the Triassic marls and a 
new saltfield to the geology of the Isle of Man. It yields the 
following section ' :— 
1 For further detaiis as to this seciion, see Trans. Manch. Geol. Soc. vol. xxii 
(1894) p. 600. 
