3 68 



[Proc. B.N.F.C. 



which yield these foraminifera are intercalated with laminated and 

 current-bedded sands, overlying the whole being a series of 

 gravelly and pebbly beds, all indicating water action and current- 

 bedding. From these pebbly beds one member obtained a shell 

 fragment of Arctic type. An examination of ioo pebbles or erratics, 

 chosen almost at random from a small section, yielded the following 

 result : — Carboniferous rocks, 65 ; basalt, 24 ; mica schist, 6 ; 

 quartzite, 4 ; and flint, r. It is clear then that though the majority 

 of the erratics here are local, yet there is a fair proportion of 

 "travelled" rocks in the deposit. Adjoining the sand pits is a 

 rounded hill or drumlin of boulder-clay. 



At Navan quarry the limestone is still extensively worked, but 

 not nearly so much for the purpose of building stone as formerly. 

 The stone is usually of a light grey colour, though some of the 

 deeper beds have a purplish tint. Both here and at Carrick- 

 aloughran several of the beds exhibit a sandy appearance and 

 texture. All the beds contain fossils, fish remains being most 

 prevalent at Navan. The floor of the latter quarry, which is from 

 50 to 60 feet from the surface level of the top, is composed of 

 hard crystalline masses of coral, the prevalent type being 

 Lithostroiion basaltiformis. 



The Botanical members of the party were well pleased with 

 the result of their afternoon's ramble. As they were few in number 

 they accompanied the geologists, rightly conjecturing that the rough, 

 uncultivated ground in the vicinity of the quarries and sand-pits 

 would prove interesting from the floristic standpoint. In this they 

 were not disappointed. Ranunculus trichophyllus, was seen in a 

 disused quarry at Carrickaloughran. On the neighbouring esker, 

 the Pryamida] Orchid, Onhis pyramidalis, grew in the greatest 

 profusion. This orchid is extremely rare in the north-east, and was 

 quite new to some of the members. It was likewise seen in dry 

 pastures in another locality, and also near Navan fort. A rare 

 clover occurred in abundance over the same area. This was 

 Trifolium medium, a very handsome plant. 



