ROYAL DUBLIN SOCIETY. 
HUNDRED AND FORTY-NINTH SESSION, 1879-80. 
MINUTES OF PROCEEDINGS. 
Monpbay EveninG, NOVEMBER 17TH, 1879. 
Sections I. and ITI.—Physical and Experimental Science, and 
Applied Science. 
(With which the “ Dublin Scientific Club” is associated. ) 
W. F. BARRETT, F.R.S.E., in the Chair. 
The following Communications were laid before the Section:— 
G. F. FirzcEerawp, F.1T.c.D.—“ On the possibility of originating Wave 
Disturbances in the Ether by means of Electric Forces.” 
(Transactions, Vol. I., Part X.) 
R. J. Moss, F.c.s.—“* Note on some points in the Analyses of Commer- 
cial Superphosphates.” 
G. JOHNSTONE STONEY, D.SC., F.R.S.— Report on the Progress of Science 
—Professor Henry Newton’s Researches on Cometary Astronomy.” 
The following were exhibited :— 
Photographs of the Sun. (Presented to the Society by M. Janssen.) 
Photograph of a portion of the Solar Spectrum, illustrating Prof. 
Draper’s discovery of Oxygen in the Sun. (Presented to the Society 
by W. Erck, Lx.D.) 
Section I —Natural Science. 
(With which the “ Royal Geological Society of Ireland” is 
associated. ) 
Rev. Dr. HAUGHTON, F.R.S., in the Chair. 
The following Communications were laid before the Section :— 
G. Ormonde Stoney, Captain 25th Regiment.—“ On supposed Foot- 
prints on the Surface of a Rock near Mulrany, Co. Mayo.” 
Professor HuULL, LL.D., F.R.S.—‘‘ Relation of the Carboniferous and 
Devonian Formations of the South of Ireland with those of North 
Devon.” 
(Transactions, Vol. I., Part XI.) 
R.D.S. MINUTES, - wey 
