﻿Fig. 4. — A thin vein to 1 inch) of pseudotachylyte following 

 tlie margin of a pale band in granite-gneiss, in part breaking 

 across it and sending venules info it ; 200 yards above the 

 boathouse. 



Sin- 



Fig. 5. — A pegmatite vein faulted 2 inches by the 

 pseudotachylyte. 



I I 'MM '--g. 



! ■ , , ■ 





i 1 1 1 1 1 1 1 1 " i i • i ' . - ! 



'! i M 1 ! #! 



1 1 i 1 l 

 i i ■ 1 





Ml : : k l] 



1 I'!!"!!?! 

 ImIMm: 



H i 1 



i ,11), 



M i h 

 i l il ' 1 1 



1 ' 1 ' ' 1 1 1 1 ' 1 1 1 1 ' 1 



'! !• i' ! 1 



it 1 1 1 



Mini i 1 

 Mil 1 ' | | 



Mm mi I 1 i m 1 i 1 



i ' i 1 i i. i 

 n 1 \\\\ i' i 



i 



1 1 ' |l' ' 



r i '" 1 i 



1 1 M 1 • || 1 

 Ml 1 1 1 ' 1 



\\p\ ; 





Inches 1 | | 1 1 . 1 1 | 



n in Nil! 



! ! ! 1 1 1 : 1 1 1 





|!.-.!! 



1 : 1 1 11 



Fig. 6. — Pseudotachylyte a quarter of a mile below the bridge. 



[The broken lines indicate the^foliation ofithe granite. 



