Section II.—Natural Sciences. 
(With which the “ Royal Geological Society of Ireland” is 
associated. ) 
Rey. Professor HAUGHTON, M.D., F.R.S., in the Chair. 
The following Communications were laid before the Section :— 
Captain H. W. Fiepey, r.a.— Some Remarks on Interglacial 
Epochs, in reference to the Fauna and Flora existing at the present 
day in the Northern Hemisphere, between the parallels 81° and 
83° N.” 
(Proceedings, Vol. II., Part I.) 
Staff Surgeon Epwarp L. Moss, r.x.—‘‘ Notes on Arctic Air.” 
(Proceedings, Vol. II., Part I.) 
D. J. Rowan, ¢.£., M.a.1. (Dub.)—‘‘On some Points in the Physical 
Geology of the Counties of Dublin and Wicklow.” 
Professor A. Maca.istTrerR, M.D.-—“ On the Crustacea of the Counties of 
Dublin and Wicklow.” 
H. W. Mackintosu, B.A.—*‘On the Protozoa and Celenterata of the 
Counties of Dublin and Wicklow.” 
W. F. Kirsy.—‘ ‘On the Lepidoptera of the Counties of Dublin and 
Wicklow.” 
Professor W. R. M‘Nas.—‘ On the Coleoptera of the Counties of Dublin 
and Wicklow.” 
Professor HULL, F.R.8., exhibited a New Geological Map of Ireland, a 
copy of which he presented to the Royal Dublin Society. 
Dr. Moore exhibited Plants of a Hybrid Sarracenia. 
Seetion III.—Science applied to the Useful Arts and Industries. 
ALEXANDER M°DONNELL, C.E., in the chair. 
: The following Communication was laid before the Section:— 
E. F. Harpmay, F.c.s.—‘‘ On the New Jarrow, and other Kilkenny 
Anthracites, compared with Welsh Anthracite as imported to Ireland. 
(Proceedings, Vol. II., Part I.) 
J. R. Wicuam, Esq., exhibited a fifth order Dioptric Lighthouse Appa- 
ratus, an Alarm Signal for Lightship Revolving Machinery, and a 
working Model of new Quadriform Gas Light for Galley Head. 
