115 



as exhibted in a gully leading through Sections 3247, 3306, 

 3305, and 3304, are, with the exception of one small break in 

 the series, contorted and squeezed together in such a manner as 

 to represent a continuous whole for a distance of at least sixty- 

 chains. As will be observed by the map, the western portion 

 of this series of foldings is no longer traceable, because buried 

 beneath drift. The eastern limb, however, can be distinctly 

 traced into a gully about four chains north from the southern 

 boundary of Sections 3302 and 3303, where the foldings, 

 are very distinctly shown. Between this point and the 

 former, a distance of about 32 chains, the average strike is 

 about 10° east ; a few chains north of this the strike suddenly 

 veers to the west about 20°, plunging the whole series under 

 the drift shortly after entering the south-west corner of 

 Section 2183, where no sign of folding is visible. 



About half a mile south-east of north-west corner of Section 

 2183 a quartzite band feathers in amongst the clay-slate. 

 Though comparatively thin on its first appearance, it increases 

 in thickness on its way north, and in a gully in Section 3326 it 

 has attained a thickness of at least 100 feet ; the dip is here 

 60° east. For some considerable distance it again thins off. 

 To the north, in a gully in Section 3325, the thickness is not 

 more than 40 feet ; the dip also has fallen to about 40°. From 

 this point it veers slightly to the east, and from the effect of 

 an anticlinal fold, and also a thickening of the beds — as shown 

 in Sissman's quarry, Section 3325 — might be attributed the 

 bold outline of the hill embraced by Sections 3324 and 3325. 

 This quarry of road metal has been excavated in the focus of 

 this anticlinal fold, and the beds are very much fractured, and 

 split into all shapes and sizes ; as also the band seems to be 

 much thicker than it was in the gully in Section 3325. This 

 disturbance of the strata has evidently extended north, for in 

 a ravine in Section 3328 the quartzites are not only seen in a 

 very massive state, but also as if repeated more than once ; 

 and what is even more interesting, the bands, so massive and 

 numerous here, cannot be traced further. They do not 

 appear even in the bed of the gully leading through Sections 

 3334 and 3216 ; but on reaching a ravine leading through the 

 northern side of the latter section, the quartzites are here con- 

 secutively intercalated with the clay-slates from the eastern 

 margin of the drift to the eastern boundary of the section. 

 Beyond this gully they are not traceable. 



Middle or Mill Series. — This series traverses the district 

 pretty uniformly from south to north. Commencing in Sections 

 3309 and 4174, where, intersected by the cross section and 

 following their outline south, they continue to follow a pretty 

 uniform course until reaching Sections 5675 and 4170, at 



