Long Reef, 
325 
about two miles from Eastwood Railway Station. 
There is an excellent road (about three miles) from 
Parramatta. There is no difficulty in finding the place, 
it being a well-known locality where basalt has been 
quarried for road-making for upwards of fifty years. 
A student may find here good specimens of basalt, 
chromite-bearing altered serpentine, prohnite, calcite, 
barite, and quartzite. 
Decomposed basalt, probably part of a dyke, can 
be seen associated with columnar sandstone in the 
quarry at the tram terminus, Five Dock. Some of the 
most perfect examples of columnar sandstones known 
about Sydney were found here. The bed has been 
used up for road metal, but some good columns are 
preserved in the Technical Museum. 
At Long Reef, between Narrabocn and Manly, the 
Narrabeen Shales appear, rising from beneath the 
Hawkesbury Sandstone. A basaltic dyke cuts through 
the shales near the fore-shore, and, owing to its hard- 
ness, it is seen standing like a dwarf wall above the 
softer shales. Fossil plants are plentiful in these 
shales. Nearer to Manly, at Freshwater, Olean- 
dridimn (Fig. 3) was discovered in the Hawkcsbury- 
Wianamatta Series, by Mr. Benj. Dunstan. 
The Narrabeen Shales in the Cliffs on the coast, 
to the north of the entrance of Narrabeen Lagoon, 
give splendid examples of Tkiunfeldia odontop- 
teroides , Danccopsis , and Phyttotheca Australis. Abun- 
dant ripple marks in the sandstones may also be seen. 
The fossil fish from Gosford were all unearthed in 
