1873] 



19 



[Lesley. 



no 18. 



, orte crop 



JctUz tOO Yards Co /inch.. 



On the Gorgas farm, near Bridgeport, on the Susquehanna, a limestone 

 ore bank was extensively worked. 



These ores, from their uniformly good quality and value for mixing 

 with cold-short ores, are in great demand and readily bring $o or more a 

 ton. But the uncertainty of the shape of the deposits and their size, 

 the large amount of clay to be handled to each ton of ore, and the cost 

 of pumping water for washing, or using the still more costly screener, 

 these reasons prevent any great quantity of the ore from reaching the 

 market even at the high price named above. A thorough development 

 of these valley ores and the discovery of large regularly bedded deposits 

 would change the whole character of the estimate of mining expenses. 



III. YORK SPRINGS BRANCH RAILROAD.— A branch railroad 

 leaves the Harrisburg and Potomac Railroad, near the mouth of Dogwood 

 Run, and follows that stream around the eastern end of the South Moun- 

 tain, running to York Springs Burrough formerly Petersburg in Adams 

 County. This branch now under construction, therefore, reaches the 

 mountain hematites on the South Mountain as well as the magnerii 

 iron ores of York and Adams Counties. 



I. Mountain Hematite. No. 20. Knaub Bank. — Lies 2| miles west 

 from Dillsburg. As shown by the rough sketch given below, the bank 

 lies 80 feet above the stream which must supply water for washing. The 

 proposed new line of the Harrisburg and Potomac Railroad passes within 

 about 1£ miles. The bank has not been worked for some time, and the 



