Section C. — Archseology, Linguistic, and Literature- — 



1. — On tlie Discovery of an Ancient Grave, near Ardrahan, County 



Galway. By J. Makets Robeets, B.A.I. (Dublin). 

 2.— The Irish Guards, 1661-1798. By C. LiTTOif Falkiner, M.A. 

 8 — Scarabs in the Dublin Museum. By Miss M. A. Murkay, F.S.A. 



Scot. 

 4. — Notes on an TJlipublished MS. Inquisition (a.d. 1258), relating to 



the Dublin City Watercourse. From the Muniments of the Earl 



of Meath. By Heney F. Beeey, M.A. 

 5. — An Arabic Inscription from Rhodesia. By Staitley Lane-Poole, 



M.A., LiTT.D. (Plate I.) 

 6. — Some further Notes on Ancient Horizontal Water-MiUs, Native 



and Foreign. By Joseph P. O'Reilly, C.E, (Plates II., III., 



and lY.) 

 7. — The Cists, Dolmens, and Pillars, in the Eastern Half of the County 



of Clare (Baronies of Bunratty). ByTsonAS Johnson Westropp, 



M.A. (Plates V. and VI.) 

 8. — The Cists, Dolmens, and Pillars, in the Eastern Half of the County 



of Clare (Baronies of TuUa). By Thomas Johnson "Westropp, 



M.A. (Plates VII. and VIII). 

 9. — Some Illustrations of the Commercial History of Dublin in the 



Eighteenth Century. By C. Litton Falkiner, M.A. (Plates 



IX.-XIL) 

 10. — The Itinerary of Patrick in Connaught, according to TirechS,n. By 



J. B. Bury, M.A., LL.D., Litt.D., Regius Professor of Modern 



History in the University of Cambridge. 

 11. — The Counties of Ireland: An Historical Sketch of their Origin , Con- 

 stitution, and gradual Delimitation. By C. Litton Falkiner, 



M.A. 

 12. — Notes on the Orientations and certain Architectural Details of the 



Old Churches of Dalkey Town and Dalkey Island. By Joseph 



P. O'Reilly, C.E. (Plates XIII.-XVII.) 

 13. — The First Mohammadan Treaties with Christians. By Stanley 



Lane-Poolr, M.A., Litt.D. 

 14. — Some Monuments of the La T^ne Period recently discovered in 



Ireland. By George Coffey. (Plates XVIII.-XXII.) 

 16. — " The Ancient Forts of Ireland." Being some further Notes on a 



Paper of that name, especially as to the Age of Motes in Ireland. 



By Thohas Johnson Westropp, M.A. 



CONTENTS 

 SECTION A. PART 4 



PAOE 



9. — Some New Relations in the Theory of Screws. By Professor C. J. Jolt, 



M.A., D.Sc, F.T.C.D., 69 



10. — A Method of Reduction of a Quartic Surface possessing a Nodal Conic 

 to a Canonical Form. With an Application of the same Method to 

 the Reduction of a Binodal Quartic Curve to a Canonical Form. By 

 John Feasee, . . 71 



Dublin ; Printed at the University Press, by PONSONBY & aiBBS, 

 Printers to the Academy. 



