TRANSACTIONS OF SECTION C. 885 



which may be considered coarse-prained Granophyres. In addition to theae there 

 are several dykes of Olivine Dolerite and Andesitic Basalt, but these are not known 

 to bo genetically connected with the Granite. 



On Crystals dredged from the Clyde near Ilelensbtirgh, with Analyses 

 by Bv. W. Pollard. £y J. S. Flett, 3f.A., D.Sc. 



6. Note on a Phosphatic Layer at the Base of the Inferior Oolite in Skye 

 By Horace B. Woodward, F.R.B., of the Geological Survey. 

 [Communioated by permission of the Director of the Geological Survey.] 



At the southern end of the great cliffs of Ben Tianavaig, south of Portree, in 

 Skye, the basement beds of the Inferior Oolite, which contain large dogger-like 

 masses of calcareous sandstone, rest in a hollow of the Upper Lias Shales, owing 

 to local and to a certain extent contemporaneous erosion. Lining this hollow 

 there is an irregular and nodular band, two or three inches thick, of dark brown 

 oolitic and phosphatic rock ; a fact of interest, as instances of local erosion are often 

 attended by the accumulation of phosphatic matter in beds, nodules, and derived 

 fossils. 



Mr. George Barrow, who made a rough analysis of the rock, estimated the 

 amount of phosphate of lime at about 50 percent. ; and Mr. Teall, who examined 

 a section under the microscope, noted, in addition to the oolite grains, fragments of 

 raoUuacan shells and echinoderms, and foraminifera, in a finely granular matrix 

 formed of calcite. He observed that the central portions of some of the oolite 

 grains were formed of a nearly isotropic brown substance in which the typical 

 concentric structure of the oolite grains was well preserved. This substance waa 

 no doubt phosphatic. 



7. Further Note on the Westleton Beds. 

 By Horace B. Woodward, F.R.S. 



In a paper read before the British Association in 1882 (printed in full in 

 ' Geol. Mag.' for 1882, p. 452) evidence was brought forward for regarding the 

 Westleton Beds of Westleton as part of the Middle Glacial division of 

 S. V. Wood, jun. Sections examined during the present year at Pakefield, 

 Kirkley, and Oulton, near Lowestoft, support the author's contention. Thus 

 beneath the Grand Hotel at Kirkley the cliff shows a mass of shingle (identical 

 in character with the Westleton Beds) dovetailing into the undisputed Middle 

 Glacial sands, which a little further south are overlaid by the Chalky Boulder 

 Clay. Evidence of a like character is to be obtained near Halesworth, where 

 the shingle-beds seen south-east of the railway station would be grouped un- 

 questionably with the Westleton Beds, and also (in the author's opinion) with 

 the shingly beds in the Middle Glacial sands east of Oulton station and at 

 Kirkley. 



Attention is drawn to sections where a newer gravel is so welded on to the 

 Middle Glacial gravel as to appear in places quite conformable. Similar pheno- 

 mena observed at the junction of Cretaceous and Eocene clays in Egypt have 

 been aptly referred to by Mr. H. J. L. Beadnell as ' unconformable passage-beds' 



Report on the Collection and Preservation of Photographs of Geological 

 Interest. — See Reports, p. 339. 



