vii 
ETTEP V 
OF 
Transmittal. 
Geological Survey Branch, 
Department of Mines and Agriculture, 
29tli November, 1904. 
Sir, 
1 have the honour to submit for publication Bart 1 of Monograph 
No. IB (Palaeontology Series) on the Silurian and Devonian Corals of New 
South Wales, by Mr. Robert Etheridge, Junior, Curator of the Australian 
Museum. 
Hitherto great difficulty has been experienced in our attempts to 
establish a dividing line between the Upper Silurian and Devonian rocks of 
New South Wales, so much so that it has been found necessary to make use 
of the term Siluro- Devonian to describe those rocks near the junction between 
the two formations, and which were regarded by the late Mr. C. S. Wilkinson, 
Geological Surveyor-in-Charge, as Passage beds. 
Obviously the first thing to do in order to clear up this difficult 
question is to have as complete a description as possible of the fossil forms 
occurring in the Silurian and in the Devonian formations respectively. The 
information thus made available will, it is hoped, enable the dividing line to 
be definitely fixed without much difficulty. The present volume, dealing 
with the genus Daly sites, may be regarded as the first portion of this 
important work which has been undertaken by Mr. Etheridge. 
I have the honour to be, 
Sir, 
Your obedient servant, 
EDWARD E. PITTMAN, 
Government Geologist. 
The Honourable the Minister 
for Mines and Agriculture. 
