276 The Irish Naturalist, [Oct., 1896. 



Occurrence of the Night Heron in County Cork. — Duriug 

 a visit to my brother this summer, who was stationed near Kilworth for 

 the manoeuvres, I made the acquaintance of a gentleman who kindly 

 presented me with the skin of an immature Night Heron {Nyctkorax 

 griseus), I regret to say he did not ascertain the sex after he had skinned 

 it. It was obtained by him in March, 1894, not far from the town of 

 Fermoy, as it was feeding in company with a Common Heron on the 

 River Blackwater, My friend did not know what it was, and it was 

 quite a chance that he had taken the trouble to preserve it. 



C. B. HORSBRUGH. 



GEOLOGY. 



Caves in Co. Leitrim. — I have received from Mr. O. B. MafFett 

 a description of a cave recently explored in Co. Leitrim. The cave is 

 known as Phoula-Dingdong, and is situated on the slope of a hill " con- 

 siderably above the level of Lough Gill, which is about half a mile 

 away." The entrance, a passage thirty feet long, leads to a drop of 

 forty feet, at the bottom of which is a talus of boulders and a small 

 pool ; from this chamber another passage runs for 300 feet. No inver- 

 tebrates of any kind were observed by Mr. Maffett, but numerous bones 

 of sheep and dogs, and the skeletons of a cow and a horse were found, 

 and also part of a human skeleton which was supposed to be that of a 

 woman who disappeared about 70 years ago. 



Mr. Maffett informs me that there are unexplored caves at GlenanifF 

 near Lough Melvin, and also at Ballinturbeck, near Bundoran. 



H. LYvSTEr Jameson, Killencoole. 



The alleg^ed Eurite of Lisnamandra, Co. Cavan. — Inthe/m/^; 

 Naturalist for August, 1896, pp. 195 and 197, I am responsible for the 

 statement that a grey eurite occurs in juxtaposition to the Carboniferous 

 series at Lisnamandra. My notes were sent to Mr. Praeger from the 

 country, in the absence of the specimens which had been collected. On 

 unpacking the latter, the " eurite " at once proves to be merely a com- 

 pact grey limestone, perhaps baked by the igneous intrusion in the 

 neighbourhood. So little of the rock, however, was exposed in the field, 

 that it may be questioned if the mass is truly in place. Its relation to 

 the sandstones certainly suggests a fault. I much regret the erroneous 

 statement to which our hurried work in the field gave rise. 



Gre;nvii,i,E a. J. Coi<E, Dublin. 



The Longest 'Cave in the British Isles.— John Naughton, of 

 Harrogate, writes as follows ; — " At a village within three and a-half miles 

 of Westport, called Aglemore, there is a Cave which is said to exceed two 

 miles.' This surpasses Mitchelstown cave. The Aglemore cave is well 

 known in that part of Ireland. I cannot personally vouch for the 

 accuracy of the length, but this I can at least say, that it is a most 

 wonderful cave and well worth a visit." — The Friend, 24th July, 1896. 



[Can any reader of the I.N. favour us with information ? — Eds.] 



