7 2 



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



Mr. Bemrose has divided the. district over which the 

 toadstones are seen into three main areas of volcanic activity : — 

 i. The North-western or Miller's Dale area. 



2. The South-eastern or Matlock area. 



3. The South-western or Tissington area. 



Miss Andrews had not been in the Tissington area, but she 

 proceeded to describe the upper and lower lavas of the Miller's 

 Dale area, the bedded tuff near the village of Litton, and the 

 intrusive sill at Tideswell Dale. She showed three microscopic 

 sections of the latter rock, in which the transition from a fine- 

 grained olivine dolerite to a coarsely crystalline ophitic dolerite is 

 clearly seen. 



Miss Andrews then gave a short account of the lavas and sills 

 of the Matlock area, and described the very interesting vents at 

 Grange Mill. These vents form two dome-shaped hills which rise 

 from the valley to a height of 100 and 200 feet respectively. The 

 rock is an agglomerate of a grey colour, with green lapille, and 

 weathers into spheroids from two feet down to an inch in diameter. 



Miss Andrews showed microscopic sections of this agglom- 

 erate, and of the olivine dolerites of the Bonsall and Ible sills. 



The paper was illustrated by hand specimens of several of the 

 rocks of the district. 



"A HOLIDAY TRIP TO WEST KERRY." 



The third meeting of the Winter Session was held in the 

 Museum, College Square North, on Tuesday evening, 21st 

 January, when two very interesting papers were delivered before 

 a large audience. The first was by Mr. Edward J. M'Kean, B.A., 

 B.L., on "A Holiday Trip to West Kerry," dealing with the folk- 

 lore of the district, and the second was by Mr. John H. Harbison, 

 of Queen's College, on "Hydra: its Movements and Reactions." 



The usual science-gossip half-hour for informal discussion 

 preceded the lectures, and subsequently the President (Mr. Robert 



