STRIKE AND DIP. 491 



At Myers' and Utter's slate quarry, one mile north of Fairhaven : 



Strike of the strata, .... N. 30 E. 

 Strike of the cleavage planes, . . N. 20 E. 

 On the hill east of the quarry : 



Dip of the strata, .... 10 E. 

 Dip of the cleavage planes, . . . 34 E. 

 Strike of the joints, . . . . N.40W. 

 At Wilbur's quarry, near that of Myers' and Utters : 



Cleavage dip, 15 E. 



Strata planes, 10 E. 



Strike of both, N.15E. 



Dip of joints, ... . 40 E. 



At Williams & Tyson's quarry, thirty or forty rods north of Wilbur's : 



Cleavage dip, ... 12 E. 



Strata planes, 5 E. 



Strike of both, N. and S. 



Joints, nearly 90 E. 



Another quarry of Williams & Tillson : 



Cleavage dip, 10 S. E. 



Strata planes, 10 E. 



Strike, ... . N. 10 E. 



Lloyd, Jones & Co.'s quarry : 



Strike of layers, .... N.30E. 



Cleavage dip, 21S.E. 



Strata planes, 17 E. 



At Allen's south quarry, in east part of Fairhaven : 



Cleavage dip, . . 20N.E. 



Strata planes, .... . 10 E. 



Dip of joints, . N. 70 E. 



The Eagle slate quarry, in Fairhaven : 



Cleavage and strata planes both dip . 20 E. 

 1st set of joints dip . . . 60 E. 



2d set of joints dip . N. 80 E. 



At the West Castleton Eailroad and Slate Company's quarry : 



Strike, . . ' . . . . N.10E. 

 Cleavage dip, . . . . . 40 E. 



Strata planes, .... 50 E. 



Joints, strike E. and W., dip 70 S. 



Quarry near Bombazine Lake : 



Dip of strata, . 



Dip of cleavage planes, .... 30 E. 



The mean strike of the east range of the longest and easterly belt of the Eutland County slate, is N. 

 21 E., by compass, or N. 11 E., by the true meridian. The strike of the formation by map is N. 7 E. 

 Difference 4. 



Mean strike of the western belt in Eutland County, N. 23 E., or N. 13 E. of true north. Strike of 

 formation N. 7 E. Difference 6. 



Mean strike of Franklin County slate, N. 25 E. 10 =N. 15 E. Strike of the formation N. 14 E. 

 Difference 1. 



All these differences are not greater, perhaps, than can be explained by the difficulty of measuring accu- 

 rately the strike of the formation, and the conclusion as to the western slates, as it was respecting those 

 east of the mountains is, that the strike of the cleavage planes and of the formations correspond. 



