04 
made with certainty, and in very few instances can even the genus be defi¬ 
nitely asserted. Still, on looking at the collection as a whole, I feel 
almost certain that the rocks belong to the Lancefield series. There are 
no specimens present that would contradict this opinion; not one that 
might not represent a Lancefield form. 
Hitherto no graptolites have been found so far to the westward. In 
1898, Mr. Thomas Smith sent me a small series of graptolites from Camp- 
belltown, which lies to the east of the Dunolly strike. These were typical 
Bendigo forms. It now appears that these are succeeded to the westward 
by fossils belonging to lower zones. Far to the south on the Moora- 
bool and Leigh Rivers, graptolites have long been known, but they are all 
higher in the series though still Lower Ordovician. 
The discovery of these graptolites in such unfavorable countrv by Mr. 
Ferguson is of very great importance, and it is to- be hoped that better 
material will be forthcoming in the near, future. 
The following are the particulars of the specimens: — 
tBryograptus or Dendrograptus , Nos. 803, 813, 814, 828, 849, 858. 
tClonograptus , the bifurcation of a large species, or, perhaps, 
D'icranograptus cf. ramosus; No. 812. 
tClonograptus ; Nos. 814, 815, 819. 825, 838, 841 (in this speci¬ 
men the centre is shown and fifteen short branches. It is not 
loganograptus .), 845, 846. 
ITetragraptus decipiens; Nos. 813, 856 (almost certain), 858. 
Dichograptid, ? genus; No. 795. 
Sponge spicules ; No. 800. 
PBrachiopod; No. 827. 
The remaining specimens are indeterminate. 
University, Melbourne, 31st October, 1905. 
Nos. 862-899. 
Quarter Sheet No. 34 N.IF. 
Indeterminate, No. 862. 
Quarter Sheet , No. 22 N.W. North-west of Mount Easton. (No. 31 on 
Locality Map.) 
Nos. 863-866 (collected by Mr. Wm. Baragwanath, junr.). 
D'icranograptus ramosus , var. semispinifer; No. 865. 
Diplograptus ingens; Nos. 863, 866. 
Climacograptus sp.; No. 866. 
Indeterminate; No. 864. 
Similar forms have previously been reported on from this locality. 
Railway Quarry , near \\ mile post , Railway Viaduct, Ingliston. (No. 30 
on Locality Map.) 
(Nos. 867-884. Collected bv Mr. A. E. Kitson.) 
Tetragraptus serra; Nos. 869 (?),, 870, 876 (?). 
Phyllograplus, sp. ; No. 876. 
Didymograptus caduceus; No. 869 (?). 
Didymograptus , sp. nov., a large form; Nos. 869, 879, 881, 884. 
The others are indeterminate. Like all the other graptolites hitherto 
found in the Bacchus Marsh District, these belong to the Castlemaine series. 
The large new Didymograptus occurs near Yapeen and Woodend, with the 
same associated forms; so that the three localities are about on the same 
horizon. 
