22 
MUSEUM BULLETIN NO, 8. 
These rocks are quite unlike the rest of the Huronian, 
consequently the occurrence in another part of the country of 
a similar association, so peculiar in appearance and of sifch 
thickness, would in itself be strong evidence of their identity. 
Such an association of boulder conglomerate, laminated grey- 
wacke, laminated greywacke conglomerate and allied types, 
of the same order of thickness, does occur in Wanapitei area. 
In addition to this the slate conglomerate group in both areas 
is overlain conformably by a thick quartzite formation. This 
quartzite is characterized in each case by thin conglomeratic 
beds made up solely of small round pebbles of white and grey 
quartz in a quartzite matrix, the most conspicuous difference 
being the presence in Bruce area of bright red j^per pebbles 
that are lacking in the quartz conglomerate at Wanapitei. 
The banded cherty quartzite formation which overlies this 
quartzite in Bruce area is represented by a similar chert-like 
deposit in the upper portion of the quartzite of Wanapitei area. 
This similarity in composition and order of sequence of the slate 
conglomerate and upper quartzite of Bruce area to the Huronian 
succession in Wanapitei area is strengthened by another circum- 
stance : the same assemblage of boulder conglomerate, laminated 
greywacke, etc., or a part of it, occurs in all the intervening 
areas. In Blind River area it is almost complete and contains 
in addition to all the types found in Bruce area, a thin siliceous 
limestone, which also occurs in Wanapitei area. In Whiskey 
Lake and Espanola areas, however, only the boulder conglomer^ 
ate is present. 
These grounds are regarded as sufficient for correlating 
the slate conglomerate group of Bruce, Blind River, and Wana- 
pitei areas, and the boulder conglomerate of Whiskey Lake 
and Espanola areas. Likewise the upper quartzite and banded 
cherty quartzite of Bruce area are regarded as equivalent to 
the thick feldspathic quartzite (Lorrain quartzite) of Wanapitei 
area and the chert-like quartzite found associated with the 
Lorrain quartzite nearer to Gowganda. 
Proceeding downward from the base of the slate conglomer- 
ate group toward the bottom of the upper Huronian series, 
the order is much less uniform in the various areas. In Wana- 
