Lesley.] 



8 



[Jan. 8, 



the Harrisburg and Potomac Railroad in Cumberland County, Pennsyl- 

 vania ; but the ore deposit is geologically continuous along the South Moun- 

 tain from the Susquehanna to the Potomac and beyond.* In addition 

 to numerous outcroppings and surface developments the ores have been 

 long and extensively worked on the old Southampton Furnace property, 

 three miles west of of Cleversburg, at Old Pond on the Caledonia estate 

 opposite Chambersburg. at Mount Alto three miles east, at Mount Etna 

 ten miles southwest of Waynesboro', and near Antietam Furnace on the 

 Potomac. 



III. Details. These will be understood by reference to the following 

 diagrams and to the accompanying map. 



A. MOUNTAIN HEMATITES.— The most eastern point of develop- 

 ment of these ores, on the line of the railroad, is on the property of the 

 Carlisle Iron Works, about three miles east from Boiling Springs. 



No. 1.+ Red Bank — Lies 2£ miles east 35° south from Boiling Springs, 

 and is opened immediately on the bank of a good, never-failing stream, 

 which would afford an abundance of water for washing, not only at this 

 bank, but for a mile west. The opening is small, only a few tons of ore 

 having been taken for testing at the furnace. The ore shows very red 

 and full of fibrous brown hematite, like the Alabama ore, but with crys- 

 tals only |, \, and ^ inch long, radiating and a little curved. The cavities 

 are small, and lined with fibrous crystalline walls. 



The quality of the ore is reported very good, producing, without ad- 

 mixture, a neutral iron. 



No estimate can be made of the mass of ore here, as the opening has 

 only gone down a few feet in the anhydrated (blood red) top-wash ore. 

 The opening is 190 feet by barometer above the Yellow Breeches Creek, 

 at the bend at Holler's, north of the bank. 



No. 2. The exposure here consists of 

 two old ore pits, marked A and B, on 

 the accompanying sketch, Fig. 4, and 

 some trial shafts. The banks lie 2 miles 

 east 45° south from Boiling Springs, and 

 one half mile west of Red Bank. No. 1. 



Pit A shows an opening of about 80 

 yards in length, by 18 to 20 yards in 

 width, and from 7 to 8 yards in depth. 

 Pit B is small, showing an opening about 

 20X10X? yards. 



The banks lie upon the side of Beltz- 

 hoover's Creek, a small, scantily -fed 

 stream, now entirely dry. All the way 

 up the creek, from A to B and beyond, are lumps and masses of splen- 



Pir. .4 



* See my description of the Palo Alto mines in Proceedings of the American Philosophical 

 Society, Vol. X, p. 4(53, ff. Dec. 1864. 



t These numbers refer to points so numbered upon the accompanying map, and not to any 

 local nomenclature. 



