35 
paper on the Geology of Castlemaine, read some years ago before the Royal 
[Society of Victoria. The commonest species among the specimens sub¬ 
mitted is Didymograptus caduceus , Salter, examples of which occur on every 
slab. The other recognizable species are Goniograptus macer, T. S. Hall, 
and Phyllograptus angustifolius , J. Hall. An indeterminate Didymograptus * 
allied to I). nitidus , J. Hall, and a Dendrograptus also occur, as well as 
numerous examples of a crustacean, probably Lingulocaris maccoyi , R. 
Eth., Jr. 
The horizon of the beds is that which I have called the Didymograptus 
caduceus zone, and is a continuation along the strike from the outcrop on 
which the zone was practically founded. 
The remaining specimens, Nos. 148-154, which were submitted at a later 
date, are apparently from two or more distinct horizons. Among the identi¬ 
fiable specimens are Phyllograptus typus , J. Hall ; Didymograptus caxluceus , 
Salter; and Phyllograpjtus angustifolius , J. Hall. There is also a Didymo¬ 
graptus , which may be D. extensus ; while Crustacea, are represented by 
Lingulocaris maccoyi , which has an extended range, and probably by another 
species of the same genus. 
The localities in the district on which more information is required are that 
to the north of the railway line, in order to determine by the fossils whether 
the northerly pitch of the strata which I have suggested is really a fact or 
not, and the country to the west of Castlemaine, especially between the 
rifle-butts and Maldon. The country near Fentiman’s Reef should yield 
fossils. The existence of the geo-syncline about Muckleford Creek and 
the repetition of the Chewton rocks at Maldon have not been satisfactorily 
proved, as they alone can be, on fossil evidence. 
University, Melbourne, 19th March, 1901. 
Graptolites numbered 155-160, from 1| Miles S.W. of Kelly’s 
Hill, near Matlock. 
The specimens closely resemble those recorded by myself from the same 
locality some years ago.* 
Dicellograptidae are represented by a species which is probably Dicello- 
graptus morrisii , Hopk. Diplograptus foliaceus is also present, and another 
species of the same genus of a spinose character, and perhaps belonging to 
the subgenus Idiograptus of Lap worth. 
The rocks are clearly of Upper Ordovician age, and it will be of interest 
to decide their relationship to those in the same neighbourhood which con¬ 
tain Cardium gippslandicum , McCoy, which that author held to be indica¬ 
tive of (Upper) Silurian age. 
University, Melbourne, 14th May, 1901. 
* Proc. Roy. Soc. Viet., N.S., vol. X., 1897, p. 13. 
C 2 
* 
