72 The Irish Naturalist April, 



NOTE ON THE ABOVE OBSERVATIONS. 



BY RICHARD M. BARRINGTON, M.A., F.L.S. 



As Mr. Dclap was about to leave Rosslare — where he had 

 been stationed for lo years as Resident Engineer to the 

 G. S. and W. Railway (Ireland), and G. W. Railway (Eng- 

 land) — I asked him to send some of his remarkable notes 

 on the autumn migration of Swallows to the Irish Naturalist. 

 The direction of flight is exactly contrary to what might be 

 expected, and is so puzzling that at present I am not pre- 

 pared to offer any explanation. Of this, however, I am 

 satisfied, that Mr. Delap's observations may be strictly 

 relied upon. 



Fassaroe, Bray 



THE BURNT GROUND FLORA OF KILLINEY HILL. 



BY NATHANIEL COLGAN, M.R.I. A. 



Observations on what may be conveniently termed the 

 renascence floras of burnt ground areas are of interest from 

 two points of view, since they may be expected to afford 

 evidence not only of the disseminative powers of certain 

 plant species, but also of the relative vitalities of various 

 seeds when exposed to high tempertitures. In the July 

 number of this Journal for 1908, Mr. Adams drew attention 

 to this subject in a paper on " The New Flora of Burnt 

 Ground on the Hill of Howth," giving the results of his 

 examination of a burnt area two years after its flora had been 

 wiped out by fire. In the present paper I propose to give 

 the results of observations made on a similar area on Killiney 

 Hill at a much shorter interval — two to three months — 

 after the destruction by fire of its flora. 



Residents on the southern shores of Dublin Bay will 

 recollect that on the occasion of the royal visit to Ireland 

 last year the Killiney Town Council resolved to contribute 



