THIBD SERIES.] fVOL. VI.^No. 1. 



CONTENTS. 



PAGE 



1. — On the Fii'st Mitosis of the Spore-Mother- Cells of Liliuni. By 

 He^-rt H. Dixon, Sc. i)., Assistant to the Professor of Botany, 

 Dublin University. (Plates I. and II.), ..... 1 



2. — On the place of the Ausdehnungslehre in the G-eneral Associative 

 Algebra of the Quaternion Type. By Chaeles J. Jolt, M.A., 

 F.T.C.D., 13 



3. — On the Epidiorite and Mica Schists of KilUney Park, Co. Dublin. By 



Professor J. P. O'Reilly, C.E. (Plates III. and IV.), . . .19 



4.— The Beaufort's Dyke, off the Coast of the Mull of Galloway. By G. H. 

 KlJfASA^^, District Sui'veyor (Retired), H. M. Geological Survey. 

 (Plate Y.), . . ' . 26 



5. — The Earliest Periodical Journals Published in Dublin. By E. R. 



M'Clintock Dix. (Plates VI. and VII.\ 33 



6. — The Milesian Colonization considered in relation to Gold-mining. By 



Professor .1. P. O'Reilly, C.E 36 



7. — The Dextera Dei Sculptui-ed on the High Crosses of Ireland. By 

 Francis Joseph Bi&REE, M.R.I.A., F.R.S. A.I. , .... 



8. — Dolmens at Ballyeroum, near Feakle, County Clare. By T. J. Westropp, 



M.A., _ . . . . . .85 



9.— On the Reduction of an Integral. ByKEV. W. R. Roberts, F.T.C.D., 93 



10. — The Chui'ches of County Clare, and the Origin of the Ecclesiastical 

 Divisions in that County. By T. J. "Westropp, m.a. (Plates YIII. 

 to XIII.), . . 100 



Minutes of the Meetings of tlie Academy, from April 10, 1899, to 

 March 16, 1900, 317-342 



DubUn : Printed at the University Press, by PONSONBY & WELDRICK, 

 Printers te the Academy. 



