Vol. XVI.] 
[Part IL 
PROCEEDINGS 
OF THE 
YORKSHIRE GEOLOGICAL SOCIETY. 
Edited by ARTHUR R. DWERRYHOUSE, D.Sc, F.G.S. 
THE PALiEONTOLOGICAL SUCCESSION OF THE CARBONIFEROUS 
ROCKS IN THE SOUTH OF THE ISLE OF MAN. 
BY WHEELTON HIND, M.D., B.S., F.R.C.S., F.G.S. 
INTRODUCTION. 
I have been making sporadic visits during the last few 
years to the south of the Isle of Man with the object of work- 
ing out the succession of the Carboniferous rocks developed 
there, and to ascertain what correlation, if any, they had to 
the Carboniferous rocks on the mainland. 
Certain details soon became clear. The Poolvash limestones 
and Posidonomya or black marble beds, could be at once recog- 
nised by the peculiar faunas which they contain as being the 
palgeontological equivalents' of well-known horizons in N. Wales, 
the Midlands, and S.W. Yorkshire. It was also recognised 
that at Derbyhaven and Langness there was a basement con- 
glomerate which rested on the upturned edges of the Manx 
slates, and was succeeded by well-bedded fossiliferous lime- 
stones. 
