lv 
RicHarpD J. Moss, F.c.s.—‘‘ On the Influence of Alkaline Carbonates 
on the Oxidation of Iron.” 
Prof. REYNOLDS, M.D., exhibited some new Tests for the Colouring 
Matter of Bile; also Large Specimens of pure Glucinum, and of the 
Fluoride of Glucinum and Potassium, prepared from Irish Beryls. 
J. R. Wicuam, Hsq., exhibited an Improved Four-wick Lighthouse Oil 
Lamp. 
Section IJ.—Natural Sciences. 
(With which the “ Royal Geological Society of Ireland” is 
associated. ) 
Rev. MAXWELL H. CLOSE, M.A., in the Chair. 
The following Communications were laid before the Section :— 
W. WitiiaAms.—< On an attempt to elucidate the History of the Cervus 
megaceros, commonly called the Irish Elk.” 
(Proceedings, Vol. II., Part I.) 
W. ARCHER, F.R.S., and EK. PercevaAL WricHT, m.p.—“ Hand List of 
the Algze of the Counties of Dublin and Wicklow.” 
Prof. A. Von Lasauux, University of Breslau.—On the Tridymite 
Quartztrachyte of Tardree Mountain, and on the Olivinegabbro of the 
Carlingford Mountains.” 
(Proceedings, Vol. II., Part I.) 
Monpay Evenine, May 20TH, 1878. 
Section I.—Physical and Experimental Sciences. 
(With which the “ Dublin Scientific Club” is associated.) 
WENTWORTH ERCK, L.L.D., in the Chair. 
The following Communications were laid before the Section :— 
The Right Hon. The Haru of Rosse, F.r.s.—‘‘ Appendix to the Cata- 
logue of Nebule.” 
(Ordered for Publication in the Transactions. ) 
G. F. Firze@erabp, F.T.c.p.—‘“On Mr. Kerr’s Experiment upon the 
Rotation of the Plane of Polarization, produced by Reflection from 
the side of a Magnet.” 
G. JOHNSTONE STONEY, M.A., F.R.S—‘“‘On an easily constructed Auto- 
matic Motion for a Two-prism Spectroscope.” 
E. T. HarpMay, F.c.s.—“ On the Applicability of Sonstadt’s Solution to 
the Separation of Minerals for Chemical Analysis.” 
Prof. BARRETT, F.R.S.E., exhibited the Microphone, and a new form of 
Optical Bench. 
