198 REPORT ON CORRELATION 
limestone formation was seen, and a great thickness of other rocks 
in thinner beds, including limestones, quartzites, amphibolites, and 
various gneisses, all of which were cut by dikes and small bosses of 
granite. ‘The series seems to be sharply folded—so sharply that 
the prevailing dips are in one direction. The thick limestone was 
found to be overlain by a great mass of granitic gneiss, under which 
it seemed to dip, and with no sign of contact action in the limestone, 
though there were traces of it in the edge of the granite. Some 
varieties of gneiss somewhat suggest tuffs. The Potsdam is just 
being worn away from the pre-Cambrian with many patches of it, 
both large and small, yet in position, showing various conglomerates 
and a very irregular deposition floor. Near at hand, but not visited, 
is a large granite bathylith full of amphibolite inclusions, precisely 
like those seen later near Deloro and Gooderham. 
In the evening the party went to Clayton. 
C. ITINERARY IN EASTERN ONTARIO - 
(Under the guidance of F. D. ADAms) 
The committee then crossed the St. Lawrence into Canada, taking 
the ferry from Clayton to Kingston, from which latter place they 
went by train to Tweed. | 
From here they proceeded to Bridgewater, in order to examine 
certain conglomerates referred to by Vennor. About half a mile 
east of Bridgewater they found granite protruding through the drift, 
which granite was succeeded immediately to the west by a body of 
amphibolite. In the amphibolite an autoclastic structure was devel- 
oped in places, which gave rise to an appearance faintly simulating 
a conglomerate. All the members of the committee, however, agreed 
that this structure was autoclastic and was of no stratigraphical 
significance. 
Passing by a great development of crystalline limestone with 
interstratified bands of fine-grained gneissic rocks at the village of 
Bridgewater, the committee went to a point one and a half miles 
west of this village, where they found exposed by the side of the 
road a conglomerate which is undoubtedly of true clastic origin. 
This conglomerate is exposed for several miles along the Madoc 
road, which runs east and west, and a good cross-section of the 
