I9I7- 



Notes. 35 



search ol Artemisia Stellariana, and there can be httle doubt that the 

 Elyraus was somehow introduced here in the interval. It may have 

 been sown as a binder of the sands, though the abundance all round of 

 Psamma arenaria, an equally efficient binder, renders that explanation 

 improbable. Or, still more improbable, it may have been drifted by 

 a southerly gale across some twelve miles of sea from the railway bank 

 where it has been sown along the shore near Bray. Or, most probable 

 solution of all, since the grass is cultivated as an ornamental species, 

 it may be a garden outcast thrown on the mainland shore of the creek 

 near Raheny, whence, like the Kamtschathan Artemisia, it has been 

 floated across the narrow water channel to find a resting place amongst 

 the dense fringe of Psamma on the seaward edge of the Bull. Against 

 this assumption of a recent introduction, it might be maintained that 

 the Elymus has been long established on the North Bull and only lately 

 disclosed by a shifting of the sands. But since the sand drift sets steadily 

 towards and not away from the present station of the grass this disclosure 

 seems highly improbable. 



Near the Elymus stations, but farther inland amongst thick beds of 

 Psamma, seven growing plants of Asparagus officinalis were found, scattered 

 over about half a mile's length of the dunes. Two of these plants bore 

 tall fruiting stems, and the species, obviously originating from garden 

 outcasts on the mainland shore at Raheny, will, no doubt, become a 

 permanent member of the North Bull flora. 



N. Co LOAN. 



Sandvcove, Co. Dublin. 



ZOOLOGY. 

 Quail and Wren on Migration at Maidens Lighthouse. 



On the night of October 4th, 191 6, Mr. Barlow picked up a dead Quail 

 on the balcony of the ^Maidens lighthouse towxr. The bird proved to 

 be an adult female in splendid condition. Almost synchi;onously a dead 

 adult female Wren was picked up in very good condition. I am indebted 

 to Mr. Barlow for foi-warding these specimens for investigation. 



C. J. Patten. 



University, Shefheld. 



Migration at Mutton island. 



The following notes are taken from letters received from Mr. Glanville, 

 keeper of Mutton Island lighthouse : — A Grey Wagtail Vvas observed 

 on August 5th, and on August loth one v/agtail was observed going 

 south and another heard calling. Mr. Glanville believes both were White 

 Wagtails, which he says he was familiar with while on the Tuskar. On 

 July 29th,. two Bar-tailed Godwits were observed, and on August 19th 

 a Black-tailed Godwit. A Greenshank was on the island from August 

 19th until August 22nd. During the latter end of August and early part 

 of September wagtails were numerous on the island and many passed 



