334 
Geology of Sydney. 
3. The following points may also be noted : — 
1. In the gulley at the back of the church 
Mount Victoria, Hawkesbury Sandstone, 
Narrabeen Shales, chert bands, coal seams, 
etc., may be examined. 
2. At the waterfall, Mount Wilson, basalt is seen 
resting on Hawkesbury Sandstone. 
3. The kerosene mines show some excellent 
examples of “ faults ” with downthrows of 
from one to twenty feet. 
Mr. Rienits, proprietor of “The School/’ Mount 
Victoria, has prepared a unique section showing the 
structure of Mount Victoria, on a scale of 15 feet to 
the inch. This gentleman has constructed a cabinet, 
the central compartment of which is made up of a 
column, representing in their true position the rocks 
from the granite of Hartley Bridge to the Hawkes- 
bury Sandstone of Mount Piddington. Each bed in 
this column is represented by a slab of stone taken 
from the actual bed itself, and shows every lithological 
variety of shales, sandstones, cherts, conglomerates, 
etc., that are known to exist in the natural sections 
exposed in the Blue Mountain ravines. On either 
side of this column is a series of compartments, 
those at one side being reserved for the fossils 
characteristic of each formation, while on the 
other side are exhibited the minerals, inorganic 
products, etc., of the various beds. Mr. Rienits, 
proprietor and head master of “The School/* is, 
with a true scientific spirit, always ready to 
