Molong. 
337 
16. Andesite and rhyolite, on the Canoblas, above 
Ploughman’s farm. 
17. Tertiary fossil fruit, under basalt, Forest 
Reefs. 
18. The locality where Hargraves discovered gold, 
at the junction of the Lewis Ponds and 
Summer Hill Creek, can be reached by a 
good road from Orange. 
The Canoblas are all that now remain of an old 
volcano. Volcanic rocks, such as basalt and andesite, 
abound : and trachyte and rhyolite may be seen, as 
stated, above Ploughman’s Farm. 
Nowhere can the Silurian slates be studied better 
than about Orange and Molong. The limestones 
contain fossils in abundance, in the Molong district in 
particular. 
To study the Permo-Carboniferous rocks, the 
student must make Newcastle or Maitland his starting 
point. 
The following places are worth a visit : — 
1. Near the Church of England, at East Mait- 
land, shales with Glossopteris, and also the 
outcrops of a coal seam can be seen. 
2. In the shale overlying the coal at Thornley 
Colliery, splendid specimens of Glossopteris . 
3. At Farley Railway Station, marine fossils. 
The outcrop of the Greta series crosses the 
railway line a very short distance to the east 
of Farley Railway Station. Upper Marine 
fossils can be gathered in the first railway- 
