120 RESEARCH COMMITTEES. 
stones is seen in a cutting by the road-side, just over the western 
crest of the hill, whilst on the southern side of the road the steep 
water-worn gullies are full of erratics and good sections of glacial 
drift, a sitw with many ice-worn stones. 
Here also, near the sixth milepost from Normanville, in the 
upper waters of the Bungala River, two small faces of polished 
pavement were recognised in a narrow mountain torrent. The 
aneroid reading was 395 feet above sea-level, and the polished 
rock is a hard and dark-coloured siliceous quartzite, identical in 
character with the more important face in the Inman Valley. 
The two polished slabs were in the same watercourse at slightly 
different levels (about 20 feet), and on one of them is a conspicu- 
ous vein of white quartz that has been planed down to the same 
level as the quartzite matrix. The strike of the striz is E.24°S., 
and there is a continuous bed of glacial drift covering the rock 
between the polished faces. 
The gathering darkness prevented a close examination of the 
country between the Bald Hills and Normanyille, and the bed of 
the Bungala is much silted so as to obscure all but the most 
recent deposits. On the following morning, however, a flying 
visit was paid to the hills bordering the sea on the north side of 
Normanville, when striated stones were picked up on the heights 
with rearranged sandy material 200 feet above sea-level. 
THE BACK VALLEY. 
In a second visit to this neighbourhood, by one of us, observa- 
tions have been made over a much wider area than that already 
described. The Back Valley country runs parallel with the 
Inman Valley, from which it is separated by a high ridge that is 
continuous for about 6 miles. This dividing range was crossed 
by following a district road that joins the main road about 74 
miles from Yankalilla, passing the house of Mr. Thomas May field, 
At an elevation of about 300 feet above the Inman a large 
_rounded boulder of granite can be seen in a paddeck on left- hand 
near to the fence. It measures 74 feet by 74 feet. Granitic 
boulders continue to be seen up to the crest of the hill, estimated 
to be 500 feet above the level of the Inman, and per haps 100 feet 
higher than the road which passes over the Bald Hills. Near 
the top of the hill there is a granite boulder 3 feet in diameter. 
After passing the crest of “the hill the ground falls away, and 
at about 100 feet less elevation the road passes along the summit 
of one of the secondary ranges of the Black Valley “with a trend 
S.S.E. and N.N.W. At the head of the road, near Mr. Marshall’s 
house, a road cutting extends for about 100 yards, exhibiting 
soft yellow sandstones, unstratified, but contorted. Strings ot 
dark-coloured argillaceous material run most irregularly through 
the stone, sometimes forming loops. No stones were actually 
