﻿Quart. Journ. Geol. Soc. Vol. LXX1I, Pl.XVII. 



Fie. 1 . Vein of Pseudotachylyte near Parijs(o.F. S. 



S.J. S., Photo. 



Fig. 2. A Boulder from one of the large Veins 

 of Pseudotachylyte near Parus. 



Bernrose. Colto, Derby 



