576 [Proc B.N.F.C., 



the Junior Section's excursion to Belvoir Park, Saxi/raga 

 granulata was re-found. This proved to be the " double " form 

 and is therefore doubtless an artificial introduction. 



The Committee regret that more work was not accomplished 

 during the Summer Session, but this was largely due to the season 

 being most unfavourable for outdoor work. They hope, however, 

 next year to be able to record better results. 



(Signed) 



N. Carrothers, Hon. Sec. of the Section. 



Report of the Geological Section. 



The Committee report that four excursions were held during 

 the past year — Cavehill Quarry and Carr's Glen, 4th May ; Giant's 

 Causeway, 7th September; Ballyclare, 21st September; and 

 Ballymurphy, 5th October. The record of fossils on the first 

 excursion was good, including spines and teeth of Diadema 

 lobatum Wright, found in Carr's Glen — the first locality in 

 Ireland from which this fossil was recorded, a few years ago, by 

 Mr. Robert Bell. 



At the Giant's Causeway Mr. W. A. Traill gave an interesting 

 account of the Geology of the district, and contended that the 

 "Red Bed" between the Upper and Lower Basalts was not merely 

 a bed of basalt metamorphosed into its present condition, but was 

 either an independent ash-bed or more probably a liquid mud 

 eruption similar in source to the immense pumice-beds found in 

 the Canary Islands and in other volcanic districts. Mr. lames 

 Strachan conducted the Ballyclare excursion In describing the 

 geological features of the district, he drew attention to the typical 

 glacial formations of the Six-Mile-Water Valley, and to the 

 interesting problems supplied to petrologists in the area marked 

 on the survey map as Lower Basalt. Two dolerite intrusions 

 within this area were visited, one at Crag Hill or the " Craigs," 



