Il8 NEW YORK STATE MUSEUM 



A third possibility must be considered, namely;, that it is a 

 totally distinct bed having no necessary connection with either of 

 the older ones. While it is natural to seek to connect those 

 already known, it must be admitted that the last view can not be 

 entirely ruled out. 



Barton Hill mines. These openings are distributed along a 

 practically continuous bed whose outcrop is approximately 3500 

 feet long in a direction a little east of north. From the 1300 con- 

 tour on the south, the outcrop rises to the 1750-foot contour on the 

 north. From the southern end of the outcrop the underground 

 workings follow an extended shoot of ore some 2000 feet farther 

 on a flat dip to the southwest; and along its axis this particular 

 branching pod must be fully half a mile long. 



Taking the Barton Hill bed as a whole it is characterized by 

 swells and pinches giving the enriched and thickened shoots which 

 have been specially followed in the mines. Their axes and there- 

 fore the workings run northeast and southwest and are 

 closely parallel with the Old Bed group, and with the Harmony 

 beds. No doubt the relationship is due to the general system of 

 folding which prevails in the gneissoid rocks and which has caused 

 the rolls and attendant bulging. Upon the map of the Mineville 

 area [fig. 19] the successive openings are given. They begin on the 

 south with the New Bed, which is the deepest and most extensive. 

 Then follow the North pit and the Arch pit, of moderate extent. 

 From the "Arch pit a tunnel is now being driven northwest on a 

 slightly ascending grade so as to bring out by a gravity tram, the 

 ore which may be tapped in the downward extension of the more 

 northerly shoots. Already some gratifying discoveries have been 

 made. 



The next pit on the north is the Lovers Hole, the famous opening 

 from which came the extremely rich ore and the remarkable crys- 

 tals of magnetite, mined about 1887-88. A total of 40,ocK> tons 

 from one chamber averaged 68.6 per cent and carload lots ran 72 

 per cent, being almost chemically pure magnetite. 



Beyond the Lovers Hole is a stretch not much mined as yet, 

 and then as the outcrop swerves with the contours to the north- 

 west, there are three pits, the South, the North and the Orchard. 

 The rock dumps are large at this end, indicating leaner ore. Beyond 

 the Orchard pit, there is an interval with no mines, and mostly 

 with concealed bed rock, for half a mile. Within this distancfe 

 there is a drop of 150 feet in the altitude and then two groups of 

 mines, now for some years unworked, are found. These are the 



