338 General Notes. [ April, 
at the Denver City discovery shaft, a local wave causes the ore 
body to dip slightly to the west. Under this gray porphyritic 
granite a low grade deposit has invariably been encountered by 
all of the shafts which have so far penetrated through it, which 
consists principally of a clayey mass varying from five to twenty 
feet in thickness, with small bodies and stringers of low grade 
silver ore interspersed through it. So far I have not learned of 
any ore being found in this deposit which has assayed over five to 
forty ounces, although it has been penetrated at nearly a dozen 
different points in this section, viz: in the Denver City discovery 
shaft, in the Shamus O’Brien, in the Little Miami, the El Paso, 
the Tip Top, the Little Sliver, the Compromise and other shafts 
which I will not occupy space in enumerating. To the west of a line 
drawn through the Little Sliver and Denver City discovery shafts 
the main contact comes so much nearer the surface that these 
overlying formations have undoubtedly been scored off by glacial 
action. This is plainly evident at points in the Lee, the Little 
Pittsburgh and the New Discovery claims, where the excoriation 
as cut down clear through the white porphyry and iron and le 
the boulder wash lying upon the silver-bearing iron itself. 
