PLATE V. 



Quartz monzonite porphyry dike cutting the massive diorite in the 

 tunnel under Bantam Lake. Photograph by B. H. Walden. 



Pegmatite lenses parallel with the flat dipping foliation of the Hart- 

 land mica schist, looo feet east of the southernmost corner in the 

 tunnel. Photograph by B. H. Walden. 



