REVIEWS. 
407 
more or less fluid of those mineral suhstauces which were originally in a molten 
condition. 
In the Gfolon-iral sootion thc> nnpers read were a " Notice of the Occurrence of 
a Roiildcr of Granite iu the White Clialk of Croydon,"* by R. Godwin-Austen. 
"On the Carboniferous Limestone Fossils from the County of Limerick, collected 
by the Irish Geolosiical Survey ; " and a description of a " New Fossil Fern from 
tiie Coal-Measures near Glin, Co. Limerick," by W, II. Bailey. " On the Drift of 
West Galway and the Fastern parts of Mayo," by J. Birminghnm. " On certain 
alterations of Level on the Sea Coast of part of the County of Waterford," by Dr. 
Clarke. In this paper Dr. Clarke described an ancient sea-bcacli of the coast of 
the county of Waterford, extending about two and a half miles, and attaining at 
one spot an elevation of sixty feet. The shells found on it were exclusively those 
of the Cardium edule. " On the Geology of the Neighbourhood of Tralee," by P. J. 
Foot, of the Geological Survey." " On the Relations of the Rocks at or below the 
Base of the Carboniferous Series of Ireland," by Sir Richard Griffith. "Notes 
from the Barbary Coast, with Fossils," by (i. F. Haberslion. " On the Geology 
of Caldbeck Fells and the Lower Sedimentary Rocks of Cumberland, and " On the 
Jointing and Dolomitization of the Lower Carboniferous Limestone in the 
neighbourhood of Cork," and "On the Records of a Triassic Shore," by Prof.- 
Harkness. '• On a Model illustrative of Slaty Cleavage," and " On Fossil Stems 
allied to Stigmaria, from the Upper Beds of the Old Red Sandstone of Hook Point, 
Co. Wexford," by the Rev. Prof. Haui;l)ton. "On the existence of Forces 
capable of changing the Sea-level during different Geological Epochs," by Prof. 
Hennessy. " On the Conductivity of various Substances of Heat,'' by Wm. 
Hopkins. On the Geological Structure of the Dingle Promontory, Co. Kerry," by 
J. Beete .Jukes and G. V. Du Noyer. " Notes on the Old Red Sandstone of South 
Wales," by J. Beete Jukes. " On the Geology of Lambay Island," by Messrs. 
Jukes and Du Noyer. " On the Valentia Trap District," by C. H. Kinahan. "On 
the Zoological Relations on the Cambrian Rocks of Bray Head and Howtb,'' by 
Prof. T. R Kinahan. In the Cambrian rocks of these two localities traces of 
organic life of three types at least are abundant. 1st, Zoophyiic, Oldhamia, of 
two s-pecies, occurring abundantly at Bray, Co. Wicklow, and sparingly at Howth, 
Co. Dublin ; 2nd, Aunelidau, tracks of wandering worms {arenicolites), arranged in 
.the same direction as the bedding, found both at Howth and Bray. Worm- 
burrows, vertical to the bedding, and arranged in pairs similar to those of the 
Longmynd. Woim-tubes, of a new type, for which the name of Ilistiodcnna 
Uibernica was proposed. These -are regarded as the membranous tubes of a 
tentaculated worm which inhabited a trumpet-shaped burrow, bent up at the 
lower end, and they occur abundantly at Bray Head, in a Cambrian sea-beach. 
3rd, MoUuscan (.'); markings precisely similar to those so-called in the 
carboniferous slates. These are from Bray. 
The worm-tracks from Howth do not appear to be identical with those of Bray, 
all the fossils of which appear to have been deposited in shallow, quiet water. 
" On the relation between the cleuvage of Minerals and the cleavage of Rocks," by 
Prof. King. "On a Section across Slieve-na-Muck, Co. Tipperary," by T. 0. 
Kelly. " On the Genus Woodocrinus '' by L. de Koninck and Edw. Wood. 
" Notice of the Recent Advances of Palasontological Discovery in Tu.'t'cany," by 
Prof. Car. G Meneghini. " The Quartz-rocks, Crystalline Limestones, and 
Micaceous Schists of the North- Western Highlands of Scotland, proved to be of 
Lower Silurian age through the Discoveries of Mr. C Peach,'' by Sir Rod. Murchi- 
son. " Note on the Fo.ssils from Durness," by J. W. Salter. 
This discovery, by Mr. Peach, of Silurian fossils in geodes and fragments of 
unchanged Silurian rocks, entangled and enclosed in altered or metamorphosed 
rocks, has formed the key to the comprehension of the age and relations of vast 
accumulations of rock-masses, the age of which were hitherto undeterminable, 
especially of those of the north-west Highlands of Scotland. 
" On the junction of the Mica-slates and granite, Killiney Hill, Dublin," by 
• Cn this subject Mr. Godwin-Austen has c ■mnuinicated an elaborate memoir to the Geological 
Society ; see the Society's Quarterly Journal for August, 1858, 
