viii List of the Contributors, 
SiBTHOKPE, BeIGADE-SuRGEON C. PAGE 
On Filaria Sanguinis Hominis. (Plate XIY.), . • .202 
Simpson, W. J. 
On Worked Flints found on a Raised Beach at Portrush, . 76 
Sladen, Percy W., F.L.S. 
Report on a Collection of Eeliinodermata from the South- West 
Coast of Ireland. (Plates XXV. to XXIX.), . . .687 
SoLLAS, W. J., LL.D., F.R.S. 
On the Occurrence of Zinnwaldite in the Mourne Granite, . 379 
Stewart, S. A. 
Report on the Botany of South Clare and the Shannon, . . 343 
Takleton, Francis A., LL.D. 
A New Method of obtaining the Conditions fulfilled when the 
Harmonic Determinant Equation has Equal Roots, . 10 
On the Determination of the Numerical Factors in the Expan- 
sion of Laplace's Coefficients, 16 
Thomson, Sir William, F.R.S. 
On the Stability and Small Oscillations of a Perfect Liquid full 
of nearly Straight Coreless Yortices. (Plate XIX.), . 340 
Wakeman, W. F. 
On the Bullan, or Rock Basin, as found in Ireland, with special 
reference to two Inscribed Examples. (Plates XYI. to 
XYIIL), 257 
Wright, Joseph, F.O.S. 
Report on the Foraminifera obtained off the South- West Coast 
of Ireland. (Plate XX.), ...... 460 
DATES OF THE PUBLICATION 
OF THE SEVERAL PARTS OF THIS YOLUME. 
Part 1. Pages 1 to 172. December, 1888. 
„ 2. „ 173 „ 264. December, 1889. 
„ 3. „ 265 ,, 440. June, 1890. 
„ 4. 441 „ 599. January, 1891. 
„ 5. „ 599 „ 726. June, 1891. 
