Bowral. 
329 
the neighbourhood of Menangle, fragmentary shells 
occur. At Kenny’s Hill, on the Campbell to wn-Camden 
Road, plant remains are abundant. At Mount Hanna 
near Qlenlee, an interesting intrusion of basalt pierces 
the Wianamatta beds, and a narrow basaltic dyke may 
be traced for some miles through the Camden Park 
Estate. Somewhat similar outflows are to be found at 
Bringelly and near Appin. 
At Bundanoon, about two miles to the east of the 
station, the ravine of the Bundanoon Creek exhibits a 
good section of the Wianamatta, Hawkesbury, 
Upper Coal, and Upper Marine Series, in descending 
order. Glossopterw, Gangamopteris , Vertebraria and 
Phyllotheca are abundant in the Coal Measures, and 
Spirifer, Productive, Mveonia, Fenes fella and Protore - 
tepora are abundant in the Upper Marine Series. 
At Bowral the great mass of intrusive rock com- 
monly called “trachyte” can be studied. It forms a 
prominent hill close to the town, and is worked exten- 
sively for building stone. Teeth of a Labyrinthodon 
and fish-remains have been found in the shales near 
the railway tunnel, Bowral. The cuttings along 
the line show dykes intruding the Hawkesbury - 
Wianamatta rocks. Basalt occurs also near the tunnel, 
but having no seeming connection with the “ trachyte.” 
The last named rock shows fine crystals of the glassy 
felspar known as sanidine, so that if the term 
“trachyte” is to be retained, the name sanidine 
trachyte would be appropriate. Petrologists call the 
rock either syenite, or sanidine syenite. 
