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. 



Vol. XXIV.— Science (complete), 31s. Qd. 



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



,, Antiquities (complete), 19s. Qd. j 



Vol. XXV. — Science (complete), 37s. Qd. 



Vol. XXVI.— (Science) :_Parts 1 to 10. 17s. Qd. 



Part 11. — On the Aspect of Mars at the Oppositions of 1871 and 1873. By 

 C. E. BuKTON, B.A. (Plates VII. & VIII.) Is. [PubUshed April, 1878.] 



Part 12. — Direct Demonstration of the Properties of the First Negative Pedal 

 of a Central Conic from any Point in its Plane. By JoHN C. Malet, M.A. Is. 

 [Published AprU, 1878.] 



Part 13. — On the Intersections of Plane Curves of the Third Order. By 

 Anbeew Seaele Haet, LL.D. Is, [Published July, 1878.] 



P^-rt 14. — On a Proof that every Algebraic Equation has a Root. By \ 

 John C. Malet, M.A. i 



Part 15. — On a Certain Surface derived from a Quadric. By John C. l 

 Malet, M.A. [PubUshed July, 1878.] ) 



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

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

 the Rev. H. Lloyd, 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. Mackintosh, B.A. 

 (Plates IX., X., XL) Is. [Published October, 1878.] 



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

 the Development of its Antheridia and Tetraspores. By Edvp". Peeceval 

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

 lished January, 1879.] 



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

 Development of the Tetraspores in Polysiphonia. By Edv^taed Peeceval I 

 V^EiGHT, M.A., M.D., F.L.S., F.R.C.S.I. (Exam.) (Plate XIV.) [Pub- 

 lished January, 1879.] J 



Part 20 On the 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. 3s. M. [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 June, 1879.] 



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



Part 1. — On the BeU of St. Patrick, called the Clog an Edachta. By William 

 Reeves, D.D. [Published March, 1877.] Is. 



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

 Rev. De. Oeaves, Lord Bishop of Limerick. [Published November, 1878.] 



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

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

 [PubUshed April, 1879.] 



\ For continuation of List of Puhli cations, see page iii. of this Cover. '\ 



y 2s. 6^. 



