Anniversary Address. 241 



to the scene by long trains of porphyry rocks which have, 

 time after time, rolled down from the summit. The action of 

 the elements has given to these rocks externally a violet 

 bloom, which when illuminated by sunlight appears beautiful 

 amid the green herbage. Locally these trains of rocks are 

 called Glidders or Glitters, which with much probability has 

 been derived from ' gleiten ' to slide. Mr. Carr of Hedge- 

 ley pointed, out horizontal ridges in several places on the hill 

 sides considerably above the level of cultivation at the pre- 

 sent period being probably the remains of a very ancient 

 husbandry. Two distinct river terraces or haughs were 

 noticed lower down in the valley, proving that the Breamish 

 had formerly flowed at elevations from 10 to 20 feet above its 

 present channel. 



Arrived at Greaves Ash, near to Linhope, the party com- 

 menced examining the extraordinary remains of the ancient 

 British town and fortlet there. All were interested in observ- 

 ing the result of the excavations which have been in progress 

 under the direction of the club, with the view of showing 

 more of the character of the place, and if possible of throwing 

 some light on a dark and distant period of our history. But 

 of this structure a full account may be expected at the August 

 meeting of the club. Some of the members extended their 

 walk as far as Linhope Spout — a picturesque waterfall. 

 Fortunately before the party arrived at Greaves Ash, the 

 weather became favourable, and the party could with a high 

 degree of pleasure ramble over the hills in the neighbourhood. 



The observations made in natural history were not import- 

 ant. In the Powburn Ranunculus aquatilis was abundant, 

 along with CalUtriche autumnalis, Callitriche verna, and 

 CalUtriche platycarpa ; Teesdalia nudicaulis and Filago 

 minima were in the gravelly bed of the Breamish ; and near 

 the Linn the very pretty Saxifraga stellaris, Polypodium 

 Phegopteris and Dryopteris, and Cystopteris fragilis were 

 found. The porphyry rocks at Greaves Ash and on the 

 banks of the Breamish are crusted over with lichens — none 

 however of much rarity; the following have been determined. 



