PUBLICATIONS OF THE EOYAL lEISH ACADEMY. 



TRANSACTIONS : Quarto, boards ; or in parts, stitched. 



Vols. I. to XXIII. (some out of print). For Prices, &c., inquire at the Academy. 

 Yol. XXIV.— Science (complete), Sis. 6^. 



Polite Liieeattiee (complete), 5.. j ^^^^^^^^ ^.^^^ 24«. 



,, Antiquities (complete), 19s. M. ) 



Vol. XXV.— Science (complete), 37s. Q,d. 

 Vol. XXVI.— (Science) :— (Complete). 35s. 



Part 20 On tlie Equations of Circles (Second Memoir). By John Casey, 



LL.D., F.R.S., M.R.I. A., Professor of Mathematics in the Catholic University of 

 Ireland. [Published April, 1879.] 



Part 21. — On the Correlation of Lines of Direction on the Earth's Surface. 

 By Joseph P. O'Reilly, C.E. Central School of Paris ; Professor of Mining and 

 Mineralogy, Royal College of Science, Ireland. [Published June, 1879.] 



Part 22. — Explanatory Notes and Discussion of the Nature of the Prismatic 

 Forms of a Group of Columnar Basalts, Giant's Causer/ay. By Joseph P. O'Reilly, 

 C. E. Central School of Paris ; Professor of Mining and Mineralogy, Royal College 

 of Science, Ireland. (With Plates XV. to XVIII.) [Published November, 1879.] 



Vol. XXVII. (Polite Lit. and Antiquities) : — 



Part 2. — On an Ogam Monument in the County of Kerry. By the Right 

 Ret. Dr. Graves, Lord Bishop of Limerick. [Published November, 1878.] 



Part 3. — On the Croix Gammee, or Swastika. By the Right Rev. Charles 

 Graves, D.D., M.R.I. A., Lord Bishop of Limerick, &c. (With Illustrations.) 

 [Published April, 1879.] 



Part 4. — Fasciculus of Prints from Photographs of Casts of Ogham Inscrip- 

 tions. By Sir Samuel Ferguson, LL.D. (With Plates I*, to V.) 



Vol. XXVIII. (Science) :— 



Part 1.— On Chemical Equ.ilibrium. By F. A. Tarleton, LL.D., F.T.C.D. 

 [Published December, 1880.] 



Part 2. — On a New Genus and Species of Sponge. By Dr. E. P. Wright. 

 (Plate I.) [Published February, 1881.] 



Part 3. — On Blodgettia confervoides of Harvey, forming a new Genus and 

 Species of Fungi. By Edw Perceval Wright, M.A., M.D., F.L.S., Professor 

 of Botany in the University of Dublin. (With Plate II.) [Published February, 

 1881.] 



Part 4. — On a new Genus and Species of Unicellular Algse, living on the Fila- 

 ments of Rhizoclonium Casparyi. By Edw. Perceval Wright, M.A., M.D., 

 F.L.S., &c., Professor of Botany in the University of Dublin. (With Plate II.) 

 [Published February, 1881.] 



Part 5. — On the Periods of the First Class of Hyper-Elliptic Integrals. By 

 William R. Westropp Roberts, M.A. [Published March, 1881.] 



Part 6. — New Researches on Sun-heat and Terrestrial Radiation, and on Geo- 

 logical Climates. By the Rev. Samuel Haughton, M.D. Dubl. ; D.C.L. Oxon. ; 

 LL.D. Cantab. (Parts I. and II.) [Published October, 1881.] 



Part 7. — Extension of the Theory of Screws to the Dynamics of any Material 

 System. By Robert S. Ball, F. U.S., Astronomer Royal for Ireland. [Pub- 

 lished November, 1881.] 



[For continuation of List of Publications, seepage iii. of this Cover.'] 



