PROCEEDINGS OF SECTION C. 425 
be considered novel or striking, and that I have only dealt with 
a small part of one district of New South Wales. The descrip- 
tions, however, may be of interest to those engaged in the study 
of metamorphism, and the specimens exhibited will serve for 
comparison with those of other areas. It may thus be possible 
to form an opinion as to whether the upheaval which produced 
our Bathurst anticlinal is likely to have been connected with the 
upheaval and metamorphism of Gippsland and other districts of 
Victoria and New South Wales. The most probable date of our 
upheaval seems to be about the close of the Devonian period. 
When I first made the acquaintance of the Bathurst rocks, I had 
hopes that I might be able to trace the passage from a true 
sedimentary rock to a typical mica schist, and thus do something 
tewards settling the question of the origin of the latter class of 
rocks. Unfortunately, I have not been successful in finding 
anything which a critical authority would be likely to admit as a 
true crystalline mica schist. It is true that some of our schists 
and phyllites bear some resemblance to the so-called pebidian 
rocks of Anglesea. Pebidian, it will be remembered, was one of 
the divisions into which Dr. Hicks proposed to divide Archean 
rocks. One is not sure, however, whether pebidian has not now 
been given up even by its author. 
In my paper of last year I expressed the opinion that the 
problems of metamorphism could only be settled by each observer 
studying, and, if possible, mastering the rocks of his own area, 
and recording facts without much regard to theory. I have not, 
by any means, mastered the Bathurst district ; indeed, the more 
I study it the farther I seem to be from mastering it. I have, 
however, tried to record a few facts, and these I now present for 
what they are worth. 
Before concluding, I should like to say that in my work in the 
field during the past year I have several times been accompanied 
by the Rev. J. M. Curran, F.G.S., with whom also I have had 
the advantage and pleasure of discussing the various problems 
which presented themselves. I must also acknowledge my 
indebtedness to one of the students of my geology class, Mr. W. 
Pascoe, who very kindly ground and mounted a series of sections. 
Some months agoI sent a collection of rocks to England to be 
cut and submitted to some of the leading English petrologists. 
The slides have not yet come to hand, and had it not been for 
Mr. Pascoe’s kindness I should have been at a great disadvantage, 
as I had not time to grind the sections myself. 
4.__NOTES ON THE DEVELOPMENT OF QUARTZITE, 
MALDON. 
By Jno. Hornspy. 
