1893-94-! 2 9 



activity, when gabbros and dolerites were erupted. Granite 

 and eurite veins have subsequently penetrated this dark mass, 

 the whole intrusive series being later than the Carboniferous 

 period, and being assignable, with every probability, to early 

 Tertiary times, on account of its close resemblance to the series 

 in Mull and Skye. Looking seaward, the most recent geological 

 feature of the district is observable — the interesting flat land on 

 which Greenore stands. This is the raised beach that marks 

 the last upheaval of the eastern coast of Ireland. 



This castle was built by some of the followers of King John — 

 a.d. 1 210 — to guard the lough before and the narrow pass behind, 

 and was a place of considerable importance, its walls being in 

 some places eleven feet high, many of its passages, chambers, and 

 fortifications being still perfect. It was surprised and taken by 

 Henry Oge O'Neill in 1596, and burned by Sir Phelim O'Neill 

 in 1642 ; again it was taken by O'Brien, Lord Inchiquin, in 

 1649. About the castle and town were found two species of 

 Swine's-cress {Senebiera Coronopus and 5. didyma), Good King 

 Henry {Chenopodium Bonus- Henricus), and Round-leaved 

 Mallow (Malva rotundifolia), with an immense profusion of 

 Red Valerian {Centranthus ruber). 



After luncheon the parly walked through the town to the 

 station and took train for Greenore, where the geologists may 

 be said to have truly enjoyed themselves at the raised beach 

 of gravels, which is there so prominent along the shore, the 

 lady members being especially active in uncovering marine shells. 

 The coleoptensts hunted assiduously, and amongst others found 

 Bembidium littorale, Cafius xantholoma, Hyper a polygoni, Gas- 

 troidea polygoni. The botanists found the Sea-holly (Eryngium 

 maritimum), Horned Poppy {Glaucium luteum), Sea-orache 

 (Atriplex farinosa), Hound's-tongue (Cynoglossum officinale), 

 English Catch-fly (Silent anglica), White Mustard (Sinapis 

 alba), and three poppies (Papaver rhceas, P. dubium, and P. 

 hybridum). The best find of the day was made by R. L. 

 Praegeron the railway banks, in the Lesser Toad flax (Linaria 

 minor), where it was growing in abundance. 



