PUBLICATIONS OF THE EOYAL IRISH ACADEMY. 



TEANSACTIONS : Quarto, boards : or in parts, stitched. 



Yols. I. to XXIII. (^807716 out of 2m7it'). For Prices, &c., inquire at tlie Academy. 



Yol. XXIY.— ScrEifCE (complete), Zls. 6i. 



Polite LiTEBATUitE (complete), os. | ^^^^^^^^ 24.. 



,, Antiquities (complete), 19s. 6t?. ) 



Yol. XXY. — SciEifCE (complete), 37s. Qd. 



Yol. XXYI (SciEifCE):— (Complete). 3os. 



Part 16. — Attempt to deduce the General Laws of tlie Yariations of Tempera- 

 ture at the Earth's Surface from those of Solar and Terrestrial Radiation. Bv 

 the Ret. H. Llotd, D.D., D.C.L., Provost of Trinity College, DubHn. Is. [Pub- 

 lished August, 1878.] 



Part 17. — Report on the Acanthology of the Desmosticha (Haeckel). Part I. — 

 On the Acanthological Relations of the Desmosticha. By W. H. Macbjntosh, B.A. 

 (Plates IX., X., XI.) Is. [PubHshed October, 1878.] 



Part 18. — On the Cell-structure of Griifithsia setacea (Ellis), and on~ 

 the Development of its Antheridia and Tetraspores. By Edw. Peeceval 

 AV EIGHT, M.A., M.D., F.L.S., F.R.C.S.I. (Plates XII. & XIII.) [Pub- 

 lished January, 1879.] V 2 f 7 



Part 19. — On the Formation of the so-called "Siphons," and. on the 

 Development of the Tetraspores in Polysiphonia. By Edwatid Peeceval 

 Weight, M.A., M.D., F.L.S., F.R.C.S.I. (Exam.) (Plate XIY.) [Pub- 

 lished January, 1879.] 



Part 20 On the Equations of Circles (Second Memoir). By JoHif Casey, 



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

 Ireland. 3s. Qd. [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. Is. [Published Jime, 1879.] 



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

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

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

 of Science, Ireland. (With Plates XY. to XYIIL) [PubHshed November, 1879.] 



Yol. XXYII. (Polite Lit. and Antiqitities) : — 



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

 Rev. De. Geaves, Lord Bishop of Limerick. [PubHshed November, 1878.] 



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

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

 [PubUshed April, 1879.] 



Vol. XXYIII. (Science) :— 



Part 1. — On Chemical Equilibrium. By F. A. Taeleton, LL.D., F.T.C.D. 



[Published December, 1880.] 



Part 2. — On a New Genus and Species of Sponge. By De. E. P. Weight. 

 (Plate I.) [In the Press.] 



[ For continuation of List of Publications, see page iii. of this Cover J] 



