552 
Several species are new, e. g. two or more species of Pterinza, &c. : 
but the great majority of speeimens, whether from the hills south of 
Kendal, or from Kirkby Moor, are Upper Silurian; or in the beds 
Mr. Murchison places at the base of the old red sandstone (tile- 
stone). 
Le following list is made out by Mr. Sowerby from what the 
author considers a very imperfect collection :— 
_ Terebratula nucula. _ Trochus helicites. 
Orthis lunata. | Turbo Williamsii. — - 
Leptena lata. Very abundant. | Natica. 
Spirifera interlineata. Turritella obsoleta. ) Very 
Cypricardia cymbiformis. | crn. | abun- 
Avicula rectangularis. conica. dant. 
— retroflexa. | Orthoceras trochleare. 
Cucullea antiqua. | Calymene Blumenbachii. 
Bellerophon trilobatus. 
From the above lists we obtain this definite information, that the 
lower division is Lower Silurian, and that the upper division ends at 
the very top of the Silurian system, and includes beds which have 
been classed with the old red sandstone—an arrangement which is 
natural in South Wales, but is not sanctioned by the Westmoreland 
sections. 
The want of-good mineral or fossil groups to distinguish the mid- 
dle portion of the section, makes the real difficulty of representing the 
divisions on a map. 
The author then briefly noticed two other sections ; one from the 
Shap granite, through the fossiliferous slates, &c., to Howgill Fells. 
These, in their range southwards through Middleton Fells, &e., are 
placed in the upper division, though not im the highest part of it, 
which is described above. ‘They contain very few fossils, but those 
which have been found are of the Upper Silurian system. 
Lastly, the author briefly mentioned the phenomena of another 
ascending transverse section from the western end of the calcareous 
slates, as follows :— 
(1.) Calcareous slates (Caradoc) of Millum in Cumberland. 
(2.) Quartzose flagstone, coarse pyritous shale and slate, &c. 
(3.) Roofing slates of Kirkby Jreleth. 
(4.) Second band of calcareous slates, also with Lower Silurian 
fossils... 
(5.) Upper series of flags and roofing-slate extending to the neigh- 
-bourhood of Ulverston ; and in turn overlaid by coarser beds, which, 
however, in a section continued to Morecambe Bay, did not show 
any of the upper fossil bands. © 
Ireland and South of Scotland.—'The author then shortly notices 
some sections in the counties of Waterford and Kerry (to which he 
was conducted by Mr. Grifth). They exhibit a fine sequence of 
true Lower Silurian rocks, but do not show their relations (at least 
in any section seen by the author) to the older non-fossiliferous slates 
