46 
Royal Irish Academy. 
The Secretary of Council then read the following : — 
Eepoet of the Council for the Year 1889-90. 
Since the date of the last Eeport of the Council the following 
parts of the Transactions, vol. xxix., have been published : — 
Part 7. Geometrical Illustrations of JSTewlands and Mendelej elf's 
Periodic Law of the Atomic Weights of the Chemical 
Elements." By the Rev. Samuel Haughton, m.d. 
(Dubl. et Bonon.), d.c.l. (Oxon.) ll.d. (Cantab, et 
Edin.), F.R.s. 
Part 8. " The Eighth Memoir on the Theory of Screws, showing 
how Plane Geometry illustrates General Problems 
in the Dynamics of a Eigid Body with Three 
Degrees of Ereedom." By Sir Robert S. Ball, 
LL.D., F.R.s. Plate VI. 
Part 9. The Eocal Circles of Spherical Conies." By the Eight 
Eev. Dr. Graves, Lord Bishop of Limerick, f.r.s. 
Part 10. On Three Similar Eigures, with an Extension of 
Eeuerbach's Theorem." By William S. M'Cay, 
M.A., F.T.C.D. 
Part 11. *'0n the Motion of a Particle, and the Equilibrium of 
Elexible Strings on a Spherical Surface." By T. 
Preston, m.a. 
Part 12. "The Pectoral Group of Muscles." By Bertram C. A. 
Windle, m.a., m.d. 
Part 13. " Observations of Double Stars made at Markree." B 
"W. Doberck, ph.d. 
The following is in the press and will shortly be published : — 
" Cunningham Memoirs." (No. Y.). The Eed Stars : Observa- 
tions and Catalogue, by J. Birmingham. I^ew Edition by Eev. T. E. 
Espin. 
Of the Proceedmgs, Part 2 of the first volume of Series iii. wa 
published in December, 1889, containing Papers in various branches o 
Science and Archaeology, and Part 3 it is hoped will be published in 
May next, containing the Papers ordered for publication up to the date 
of the last Meeting. 
