THE 
SCIENTIFIC PROCEEDINGS 
3 - OF THE 
ROYAL DUBLIN SOCIETY. 
Vol. VIII.(N.8.) SEPTEMBER, 1898. Part 2. 
CONTENTS. PAGE 
XIV.—A Lecture Note on the Relation of the Theorem of Work to the 
Theorem of Moments. By THomas Preston, M.A., F.R.U.I., 167 
XV .—Report on Polychets collected during the Royal Dublin Society’s 
_ Survey off the West Coast of Ireland. Part I. Deep Water 
_* Forms. By Fiorence Bucnanan, B.Sc., Univ. College, 
London. (Plates IX., X., Xi.), . : 5 : : . 169° 
XVI.—Notes on Depastrum cyathiforme. By G. Y. and A. Fras. 
Drxon, : ; : . : ‘ 5 : : . 180 
-XVII.—On a Photographic Method of detecting the Existence of Vari- 
able Stars. By J. Jony, M.A., Sc.D., F.R.S., . : 184 
XVIII.—On the Distortion of Photographic Star Images due to Refrac- 
tion. By Prorressorn AntHur A. Rampavt, M.A., D.Sc., . 186 
XIX.—On some Pyenogonida from the Irish Coasts. By Groner H. 
ul CARPENTER, B.Sc., Lond., Assistant Naturalist in the Science 
and Art Museum, Dublin. (Plate XII.), . ; : solde 
XX.—On a Graphitie Schist from Co. Donegal. By Ricuazp J. Moss, 
EOSe i AC... . ; : ‘ : ; : . 206 
The Authors alone are responsible for all Opinions expressed in their Communications, — 
DUBLIN: 
PUBLISHED BY THE ROYAL DUBLIN SOCIETY. 
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