120 Van Hise — Attempt to harmonize some apparently 



exactly like the white vein quartz found in the lower quartzite 

 of Brooks and in the still lower granite-gneiss complex. The 

 ore mined is here plainly a direct detrital product from the 

 immediately underlying older formation. 



Fig. l. 



£ 



The relations will be more clearly understood by Figs. 1 and 

 2. The first is from a photograph taken with the camera, 

 pointing down upon the horizontal surface of the exposure. 

 The manner in which the banded and contorted jasper abuts 



against the conglomerate is clearly shown, as well as the 

 irregular eroded surface of the jasper at the time the conglom- 



