Lid of the Contributors. 



Vll 



Johnson, Thomas, D. Sc, and Hanna, HENEr. page 



Irish Phseophycese, . . . . . . .441 



JoLY, Charles Jasper, 3J.A., F.T.C.D. 



The Assoriative Algebra applicable to Hyperspace, . 73 



Astatic Quaternion Functions, . . . .366 



Some ti.perties of the general Coiigruency of Curves. 



(Abstract), 663 



Some Applications of Hamilton's Operator v iii the 



Calculus of Variations, . . . . .666 



Knowles, W. J., Paieeson, "W. H., Peaeger, Pt. L., and 

 Bigger, P. J. 



Investigation of the Prehistoric Settlements near Eound- 



stone, Connemara, ...... 433 



Lett, H. W. 



See McArdle, David. 



McAedle, David, and Lett, H. W., M.A. 



Report on Hepaticae collected at Tore Waterfall, Killarney, 



1897 317 



Nichols, A. Pv., P. A. 



A List of the Marine Mollusca of Ireland. (Report 



from the Pauna and Flora Committee), . . 477 



O'Reilly, Joseph P. 



On the Dates of Volcanic Eruptions and their Con- 

 cordance Tvith the Sun-spot Period, . . . 392 



Pateeson, W. H. 



See Knowles, IV. J. 



PiuNKicTT, G. T., Col; R.E. 



On a Cist and Uitls found at Tallaght, Greenhills, 



County of Dublin. (Plates X. to XV.), . . 338 



Peaegee, R. L. 



See Knowles, W. J. 



RnssELL, RoBEET, M.A., F.T.C.D. 



Geometry of Surfaces derived from Cubics, . . . 462 



