xcvi 
Minutes of the Academy. 
December 8, 1873. 
Samuel Ferguson, LL.D., Y ice- President, in the Chair. 
Edward Cecil Guinness, M, A., and Eobert Eomney Kane, M. A., 
were elected Members of the Academy, 
The following papers were read : — 
" On additional instances of the tidal floatation of sand;" and 
On an inverted Lunar Halo, and on a Lunar Eainbow;" both by 
Henry Hennessy, F. E. S., V. P. 
" On Ogham -inscribed stones from Tinahally, Co. Kerry;" by E. E, 
Brash, Esq., C. E., M. E. I. A. 
" On the collateral evidences corroborating the Biliteral key to the 
South-British Ogham Alphabet ;" by Samuel Ferguson, LL. D., V.P. 
January 12, 1874. 
Samuel Ferguson, LL. D., Yice-President in the Chair. 
The following papers were read : — • 
On some theorems in the Eeduction of Hyper-Elliptic Integrals ;" 
by J. C. Malet, A. M. 
''On screw co-ordinates, and their application to Dynamical 
Questions by E. S. Ball, LL. D., M. E. J. A. 
The following recommendations from the Council for grants out of 
the fund for Scientific Eeports were adopted by the Academy: — 
£30 to Messrs. Draper and Moss, toward their researches on 
Selenium. 
£35 to G. J. Stoney, Esq., towards the construction of the 
Academy's Spectroscope. 
Donations for the Library were presented, and thanks voted to the 
several donors. 
January 26, 1874. 
Eev. J. H. Jellett, B. D., President, in the Chair. 
The following paper was read : — 
" On a supposed substitution of Zinc for Magnesium in Minerals;" 
by E. T. Hardman, Esq. 
Donations for the Library and Museum were presented, and thanks 
voted to the several donors. 
