1892-93-] 



519 



boxes. Mr. Knowles assisted the investigation during the 

 greater part of the day. On July 7th the examination of the 

 gravels was completed, and the beds were traced as far as possible 

 northward and southward. Mr. Stewart assisted the work 

 during the afternoon. 



III. Description of Beds. — The gravels to which the present 

 report refers are seen in the face of the steep bluff impending over 

 the Antrim Coast Road at the townland of Ballyrudder. They 

 underlie a thick bed of Boulder Clay, which rises above them 

 to a height of about 100 feet above high water mark, the top 

 of the gravels being 40 to 50 feet above the same level. The 

 base of the gravels is nowhere visible, but the underlying 

 Keuper marls crop out on the sea-shore below, and, further 

 south, in the face of the bluff. This gravel bed was first ob- 

 served by Messrs. Gwyn Jeffreys and G. C. Hyndman in 1859, 1 

 and further inspection has since been made by Messrs. Grainger, 2 

 T. Mellard Reade, 3 and Stewart. 4 Your Sub-Committee selected 

 for the examination of the beds the gravel-pit by the roadside 

 about 300 yards south of Milltown stream. Here, when the 

 talus was removed, the section seen was as follows : — 



Feet. Inches. 



Boulder Clay 

 Fine hard Clay ... 

 Coarse gravel, finer below 

 Fine clay 

 Fine gravel 

 Brownish sand ... 

 Gravel, overlying ) 

 Undetermined beds J 

 New Red Sandstone 



Highwater mark 



36 







4 







20 











6 



1 







2 







12 



8 



Total 



83 



1 Report of British Association, 1859. 



2 Report of British Association, 1874. 



3 (Quarterly Journal of the Geological Society of London, Vol. XXXV., 1879. 

 * Proc. B.N.F.C., 1879-80, Appendix. 



