Mr. Robert Welch asked the lecturer if in his opinion certain 

 structures which had been seen during the excursion to the 

 Causeway were to be attributed to spheroidal weathering or to 

 the accumulation of volcanic bombs. Dr. Dwerryhouse not 

 having seen the structures, was unable to express an opinion. 



Mr. W. A. Traill did not consider the theory that the basalt 

 had been extruded from dykes or fissures to be tenable, on the 

 ground that these were too small to have produced the enormous 

 flows, some of which were as much as forty feet in thickness and 

 covered wide areas. He was of the opinion that the lavas had 

 proceeded from volcanic necks, such as those at Port Ballintray, 

 Slemish, and Scawt Hill. 



Dr. Dwerryhouse pointed out that although individual dykes 

 might be small as compared with the necks, owing to their 

 enormous number and great length, the surface area of the dykes 

 was greatly in excess of that of the necks discovered up to the 

 present time, and further, that the flows did not appear to be 

 arranged in any definite relation to the necks. 



It was also pointed out that enormous floods of lava, similar 

 in composition to that of Antrim, had issued from the Lake 

 Fissure in Iceland in the year 1783. The fissure is some 20 

 miles long, and gave rise to two vast streams of lava, one of which 

 flowed for 40 miles and the other for 28 miles. 



TUESDAY, 15TH MAY. 

 WHITEPARK BAY, BALLINTOY, AND KINBANE. 



Brakes were mounted at nine o'clock, and after a drive of three 

 miles the party dismounted above Portbraddon, and passing under 

 the Chalk cliffs eastward of the port entered the famous Whitepark 

 Bay. Much collecting was done here, while the archaeologists 

 worked assiduously at the Neolithic deposits. Lunch was taken 

 on the cliffs above Ballintoy Harbour, after which the party drove 

 on to Kinbane, where another halt was made for collecting and 

 sight-seeing, before proceeding to the next headquarters at the 

 Antrim Arms Hotel, in Ballycastle. 



