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WALCOTT 



of the Lower Cambrian (' Etcheminian'). The latter, at the 

 head of the mill-pond, on the north side, strike N. 60° E., and 

 dip 20° N.W. On the southeast side of the mill-pond the strike 

 is N. 50° E., dip 25° N.W. Then comes a gap of 300 feet before 

 the white quartzites of the St. John group are seen. These, on 

 the north side of the pond, strike N. 50° E., dip 30° N.W. On 

 the south side of the pond the dip is increased to 35°. The 

 quartzites may be traced for some distance both north and south 

 of the pond on the same general strike. Within a few feet of 

 the first outcrop on the south side of the pond, at the angle 

 where the pond narrows as it approaches the dam, beds of 

 quartzite a little higher in the section than those striking N. 



Etcheminian 

 Lower Cambrian rocks 



'"°'^>V ^"'^^ 



Fig. II. Diagrammatic sketch of.Hauford Brook and mill-pond, showing the 

 relations of the St. John quartzite to the Hauford formation. 



50° E. are curved so as to have a strike of N. 80° W., dip 70° 

 N. A few feet farther west the strike is east and west, with a 

 dip of 35°. This, a little west of the mill, is reduced to 15°. On 

 the north side of the mill-dam the quartzites strike east and west, 



