THIRD SERIES.] [VOL. VI.— No. i 



CONTENTS. 



12. — Degenerations resulting from Lesions of the Cortex of the Temporal 

 Lobe. By W. H. Thompson, M.D., Dunville Professor of Physiology, 

 Queen's College, Belfast. (Plates XIV., XV.), .... 



13. — Differentiation in the Quaternion Analysis. By Alexander Macfak- 



XANE, D.Sc, LL.])., U 



14.— Primate Ussher's Library before 1641. ByH. Jackson Lawior, D.D., 21 



15. — Report on the Ogams recently discovered near Connor, County Antrim. 



By Ret. U. R. Buick, LL.D., 2f 



16.— Supposed Autograph Letter of Bishop Berkele\ in the Library of the 



Royal Irish Academy. By Swift P. .Johnston, . . . .21 



17. — Report on the Island Ogam at Bracklaghboy, near Ballyhaunis. By 

 Professor Rhys, . . . . . . . 



Bublin : Printed at the University Press, by PONSONBY & WELDEICK, 

 Printers to the Academy. 



